Can you help by answering this question?

What makes an electromagnet stronger than a solenoid?

10 views
in Digital Instrumentation by
Two sinusoidal signals of the same frequency are displayed on a dual-trace oscilloscope. One complete cycle of each signal covers 6 cm of the horizontal scale and the starting point of the horizontal scale and the starting point of the two signals are separated by 0.5 cm. The phase difference between the two signals in degrees is 

(a) 30 (b) 45 (c) 60 (d) 90

1 Answer

0 votes
by

Two sinusoidal signals of the same frequency are displayed on a dual-trace oscilloscope. One complete cycle of each signal covers 6 cm of the horizontal scale and the starting point of the horizontal scale and the starting point of the two signals are separated by 0.5 cm. The phase difference between the two signals in degrees is 30

Related questions

1 answer 24 views

Two sinusoidal signals having the same amplitude and frequency are applied to the X and Y inputs of a CRO. The observed Lissajous figure is straight line. The phase shift between the two signals would be (1) Zero (2) 90 degrees (3) Either zero or 180 degrees (4) Either 90 degrees or 270 degrees  

asked May 28, 2018 in Electronics Engineering by Shimroz123
1 answer 8 views

In a dual trace oscilloscope, the display appears segmented when  (a) low frequency signals are observed in Alternate mode (b) low frequency signals are observed in Chop mode (c) high frequency signals are observed in Alternate mode (d) high frequency signals are observed in Chop mode

asked May 15, 2018 in Digital Instrumentation by Shimroz123
1 answer 11 views

The trace on an oscilloscope continually moves to the right of the screen when  (a) the sweep is triggered. (b) the sweep period is larger than the signal period. (c) the sweep period is smaller than the signal period. (d) there is no weep.

asked May 15, 2018 in Digital Instrumentation by Shimroz123
0 answers 10 views

In CRO, Lissajous pattern will be a straight line, if the two signals are of same frequency with a phase difference of (a) 0° (b) 180° (c) 360° (d) All of these 

asked May 25, 2018 in Oscilloscope by Shimroz123
0 answers 25 views

Lissajous pattern obtained on a CRO screen is a circle. Frequency of two signals are   (a) Equal (b) Unequal (c) Zero (d) Infinity 

asked Apr 10, 2018 in Electrical Engineering by Shimroz123
1 answer 14 views

The average value of a 12 V peak sine wave over one complete cycle is? A.0 V B.1.27 V C.7.64 V D.6.37 V

asked May 15, 2018 in Basic concepts by Shimroz123
0 answers 42 views

Explain the basic dual slope ADC technique used in digital multimeters with its diagram and measurement cycle.

asked Mar 2, 2018 in Digital Instrumentation by Quiz
1 answer 14 views

In a two -channel oscilloscope operating in x -y mode, two in -phase 50 Hz sinusoidal waveforms of equal amplitude are fed to the two channels. What will be the resultant pattern on the screen ? (a) An ellipse (b) A parabola (c) Straight line inclined at 45° with respect to x-axis (d) A circle

asked Apr 23, 2018 in Electrical Engineering by Shimroz123
0 answers 59 views

A Lissajous pattern on an oscilloscope has 5 horizontal tangencies and 2 vertical tangencies. The frequency of the horizontal input is 1000 Hz. What is the frequency of the vertical input?  (A) 400 Hz (B) 5000 Hz (C) 4000 Hz (D) 2500 Hz

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
0 answers 86 views

 When The dc converter in figure shown has a resistance load of R = 10 Ω and the input voltage is Vs 220 V the converter switch remains on, its voltage drop is Vo -2 V. The chopping frequency is fI K sW Vs If the duty cycle is 50%, determine: (a) the average output voltage V (b) the RMS output voltage Vo (c) the converter efficiency (d) the effective input resistance of the converter

asked Apr 26 by Hussein
0 answers 12 views

Two voltmeters of same range, one moving iron type and other permanent magnet moving coil type, are connected in parallel for measuring a.c. supply voltage. If the reading of MI type is 300V, the reading of PMMC type will be (a) zero (b) higher-than M.I. type (c) lower than M.I. type (d) same

asked May 25, 2018 in Electrical Measurements and Instrumentation by Shimroz123
0 answers 10 views

What is the average value of a perfect sine wave over a complete cycle ? (A) Zero (B) Peak value (C) rms value (D) None of the above

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
0 answers 21 views

A oscilloscope 4cmX4cm screen has its own sweep out, fed back to its input if x&y Sensitivities are same, the oscilloscope will display  A) triangular wave B) diagonal line C) sine wave D) Circle

asked Apr 9, 2018 in Electronics Engineering by Shimroz123
1 answer 24 views

The two inputs of a CRO are fed with two stationary periodic signals. In the X-Y mode, the screen shows a figure Which changes from ellipse to circle and back to ellipse with its major axis changing orientation slowly and repeatedly. The following inference can be made from this  A) The signals are not sinusoidal ... but not equal C) The signals are sinusoidal with their frequencies very close but not equal D) There is a constant but small phase difference between the signals

asked May 20, 2018 in Oscilloscope by Shimroz123
1 answer 27 views

Two waves of the same frequency have opposite phase when the phase angle between them is?

asked Mar 24, 2018 in Electrical Engineering by Shimroz123
0 answers 39 views

Explain the basic operation of an oscilloscope with necessary diagram for each section in detail.

asked Mar 2, 2018 in Digital Instrumentation by Quiz
1 answer 26 views

When the phase difference between two sinusoidal quantities is 90° they are said to be ______ A) Phase right angle B) Phase quadrature C) Phase sinuright D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 40 views

Two waves have frequency of 500 Hz. One is set at its maximum value whereas the other at zero. The phase angle between them will be

asked Apr 26, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 43 views

Two parallel conductors are separated by a distance, d carrying a current, I in the same direction. The magnetic field along a line running parallel to the conductors and midway between them is (A) zero (B) proportional to I (C) proportional to d (D) proportional to the permeability of the medium. 

asked Jun 4, 2018 in Electrical Engineering by Shimroz123
1 answer 33 views

Two 220 volt lamps, one of 60 watt and the other of 75 watt are connected in series across a 440 volt supply. The potential difference across 60 watt lamp will be: A) 195 volt B) 220 volt C) 245 volt D) 440 volt

asked Jun 4, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

Two non -inverting amplifiers, one having a unity gain and the other having again of twenty are made using identical operational amplifiers. As compared to the unity gain amplifier, the amplifier with gain twenty has

asked Apr 29, 2018 in Electrical Measurements and Instrumentation by Shimroz123
0 answers 18 views

What is the clock cycle time for a system that uses a clock with frequency of 150 kHz?  (A) 55 µ sec (B) 5.5 µ sec (C) 202 sec (D) 6.6 µ sec 

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 49 views

Ratings on a capacitor are given 25 µF, 12 V. Also a plus sign is written near one of its terminals. The capacitor is: -  a) Mica capacitor b) Ceramic capacitor c) Electrolytic capacitor d) Paper capacitor

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
1 answer 19 views

In a lamp load when more than one lamp are switched on the total resistance of the load?

asked Mar 25, 2018 in Basic concepts by Shimroz123
2 answers 55 views

Integrating or Dual Slope ADC

asked Aug 9, 2017 in Digital Instrumentation by Zeeshan
0 answers 10 views
1 answer 71 views

Give broad classification of maintenance with meaning of each type. State the factors on which ideal maintenance of electric rolling stock is judged. Give any two means to improve any one factor of these.

asked Sep 2, 2018 by Shimroz123
2 answers 24 views

Three lamps are connected in parallel across a 120 Volt source. If one lamp burns out, the remaining two will be: A. Glow dimmer B. Glow brighter C. Not light D. Glow with the same brightness as before

asked Apr 12, 2018 in Electrical Engineering by Shimroz123
1 answer 9 views

A radio receiver is placed at one corner of a table and again placed at some other corner of the same table. Loudspeaker output is changed because  (a) image interference is reduced (b) adjacent channel interference is increased (c) of fading (d) line of sight propagation is not utilized

asked May 15, 2018 in Electronics communication by Shimroz123
1 answer 34 views

What is digital storage oscilloscope (DSO)?

asked May 4, 2018 in Digital Instrumentation by Shimroz123
2 answers 35 views

Oscilloscope

asked Aug 9, 2017 in Digital Instrumentation by Zeeshan
0 answers 22 views

The distance between two coil sides which are connected to the same commutator segment is called as  (1) winding pitch (2) back pitch (3) front pitch (4) full pitch

asked Apr 10, 2018 in Electrical Engineering by Shimroz123
1 answer 17 views

Transient signals can be observed using  (a) storage oscilloscope (b) sampling oscilloscope (c) wave analyzer (d) spectrum analyzer

asked May 15, 2018 in Digital Instrumentation by Shimroz123
1 answer 7 views

To distinguish between signals having very close values, we need an instrument with  (a) high accuracy (b) high resolution (c) high sensitivity (d) high linearity

asked May 15, 2018 in Digital Instrumentation by Shimroz123
1 answer 29 views

The vertical deflection of an electron beam on the screen of a CRO is measured to be 8 mm. Now, the potential difference between the Y-plates is doubled, and simultaneously the pre-accelerating anode voltage is reduced to half of its previous value. Then, the vertical deflection of the beam on the screen would become (A) 64 mm (B) 32 mm (C) 8 mm (D) 1 mm

asked Apr 28, 2018 in Digital Instrumentation by Shimroz123
1 answer 18 views

The operation of a ramp type Digital Voltmeter is based on the principle of (A) Voltage-to-current conversion. (B) Voltage-to-time conversion. (C) Current-to-time conversion. (D) Current-to-frequency conversion.

asked Apr 28, 2018 in Digital Instrumentation by Shimroz123
1 answer 11 views

Draw a neat labeled diagram of Automatic Weight Tensioning and Temperature Compensation and give any two advantages of the same.

asked Sep 2, 2018 by Shimroz123
0 answers 16 views

A pair of synchronous machines on the same shaft may be used to generate power at 60 Hz from given source of power at 50 Hz. Using minimum number of poles for both the machines, the synchronous speed will be (a) 500 r.p.m. (b) 600 r.p.m. (c) 1000 r.p.m. (d) 1200 r.p.m. 

asked May 25, 2018 in Synchronous machine by Shimroz123
1 answer 16 views

A servo motor works on the same basic principle as that of a : - a) two phase induction motor b) single phase induction motor c) three phase induction motor d) synchronous motor

asked Apr 14, 2018 in Instrumentation and control by Shimroz123
0 answers 43 views

I want to build circuit that produce sweep frequency from 10KHz - 11KHz - 12....... - 20KHz (as maximum) then start again at 10KHz - 11KHz - 12....... - 20KHz looping like this (2-3 seconds per loop) until the power turned off.

asked Aug 13, 2018 in Signals and Systems by nat
1 answer 53 views
0 answers 15 views

 Most of the linear ICs are based on two - transistor differential amplifier because of: (A) Input voltage dependent linear transfer characteristic (B) High voltage gain (C) High input resistance (D) High CMRR

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
0 answers 31 views

Explain frequency domain synthesis. Which techniques fall into the category of frequency domain synthesis?

asked Mar 2, 2018 in Digital Instrumentation by Quiz
1 answer 88 views
0 answers 20 views

The most accurate instrument for measuring phase difference between two signals is (A) X− Y plotter (B) oscilloscope (C) phase sensitive detector (D) electronic counter/timer 

asked Jun 4, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 6 views

Electrical fault between two windings of same phase of a generator having double star winding can be detected by the following protection in a generator:

asked May 22, 2018 in Induction Machine by Shimroz123

Welcome to electronics2electrical.com here you can ask questions related to electrical, electronics, mechanical, telecommunication, instrumentation, computer, mathematics, physics etc.
Be respectful to all the members. Do not copy and paste the answers from other websites which have copyright content. While asking question give full details about it.

Categories

Most popular tags

power motor dc circuit transformer voltage current used system phase resistance factor synchronous load ac energy induction electric generator series frequency between speed capacitor use electrical meter line difference control type mosfet transmission magnetic plant high single instrument bjt unit source advantages function diode and machine winding field define torque parallel amplifier supply shunt thyristor motors electricity arduino maximum time relay armature problem value on transformers types coil diagram state flow ratio material three formula starting direction theorem method emf operating efficiency digital wave microprocessor test instruments inductance loss measure operation connected signal low applications effect single-phase network temperature working constant losses different law wattmeter measuring compare controlled breaker drive device logic rc full switch flux wire resistivity disadvantages free of materials machines angle force converter conductor transistor gain open protection scr core measurement number bridge principle generators reactance circuits negative the friction iron loop short pole battery conservation steam resistors hysteresis computer using analog lines secondary station gate a rectifier inverter linear induced relays nuclear capacitance basic characteristics design direct work rotor electronics ammeter forces diesel damping rlc connection factors capacitors minimum insulation moving regulation running self systems air fault range main stability quality starter igbt eddy alternator ideal rl average 3-phase plants arc thermal error fuzzy biasing dielectric pressure balanced superposition errors copper rotation feedback impedance measured electronic electrons charge inductive transfer explain start off back curve over solar is three-phase tariff locomotive peak bias zener engineering commutator surge conductors rating universal potentiometer density permanent mechanical transducer capacity memory adc excitation two fuse pure harmonics application semiconductor inductor internal pmmc reaction welding resonance traction permeability breakers rms designed electromagnetic si generation brushes switching capacitive shaded rate 1 distribution resistor methods delta star oscillator reluctance simplification algebra 8085 boolean weston dynamometer insulating strength installation definition fuel heating earth units
...