Can you help by answering this question?

What is meant by a voltage surge?

9 views
in Physics by
A compact microstrip antenna may be obtained by

1 Answer

0 votes
by

A compact microstrip antenna may be obtained by cutting slot on the patch

Related questions

0 answers 14 views

By which of the following connections, one-bit binary counter can be obtained from a JK flip-flop?  A) J = K = 0 B) J = K = 1 C) J = K’ D) None of these

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

Leakage fluxes in a transformer may be minimized by : (A) Avoiding overloads (B) Keeping magnetizing current minimum (C) Reducing the reluctance of the iron core to minimum (D) Sectionalizing and interleaving the primary and secondary windings

asked May 12, 2018 in Electrical Engineering by Shimroz123
1 answer 14 views

"Any number of current sources in parallel may be replaced by a single current source whose current is the algebraic sum of individual source currents and source resistance is the parallel combination of individual source resistances". The above statement is associated with?

asked Mar 25, 2018 in Network Analysis by Shimroz123
0 answers 20 views

If the antenna diameter in a radar system is increased by a factor of 4, the maximum range will be increased by a factor of  (a) 2 (b) 4 (c) 8 (d) 16

asked Apr 9, 2018 in Electronics Engineering by Shimroz123
1 answer 19 views

The instantaneous power in ac circuits can be obtained by taking product of the instantaneous values of 

asked Aug 31, 2018 by Zeeshan
1 answer 10 views

The state equations in the phase variable canonical form can be obtained from the transfer function by (a) Cascade decomposition (b) Direct decomposition (c) Inverse decomposition (d) Parallel decomposition

asked Apr 23, 2018 in Control System by Shimroz123
0 answers 21 views

Which parameter or quantity may be measured by use of Maxwell's Bridge ? (A) Resistance (B) Capacitance (C) Inductance (D) Frequency

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

In a static over-current relay, inverse time characteristics are obtained by   (a) A differentiating circuit (b) An integrating circuit (c) A transistor amplifier (d) A transistor switch

asked Apr 10, 2018 in Electrical Engineering by Shimroz123
1 answer 13 views

The external characteristic of a shunt generator can be obtained directly from its – characteristic   1. internal 2. open-circuit 3. load-saturation 4. Performance 

asked May 13, 2018 in Electrical Machine by Shimroz123
0 answers 17 views

Which of the following permutation can be obtained in the output (in the same order) using a stack assuming that the input is the sequence 1, 2, 3, 4, 5 in that order?  (1) 3, 4, 5, 1, 2 (2) 3, 4, 5, 2, 1 (3) 1, 5, 2, 3, 4 (4) 5, 4, 3, 1, 2 

asked Apr 10, 2018 in Computer Engineering by Shimroz123
1 answer 58 views

Starting torque can be obtained in the case of a single phase induction motor with identical main and auxiliary windings by connecting:  (1) A capacitor across the mains (2) A capacitor in series with the machine (3) A capacitor is series with the auxiliary winding (4) Equal value capacitors in series with the main and the auxiliary windings

asked Apr 9, 2018 in Electrical Engineering by Shimroz123
0 answers 16 views

To increase gain of a parabolic reflector antenna by 6dBi, the correct statement is : ( Assuming efficiency 70%) a. Diameter is to be increased to 6 folds b. Diameter is to be increased to 4 folds c. Diameter is to be increased to 2 folds d. None of above

asked Apr 12, 2018 in Electronics Engineering by Shimroz123
0 answers 14 views

In an axial mode operation of a helical antenna, maximum field radiated by the antenna is :  A) along the axis of the helical B) in a plane normal to the helix antenna axis C) in both axial and normal planes D) None of the above

asked Apr 9, 2018 in Electronics communication 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
2 answers 48 views

An Auto-transformer (which has only one winding) may be used as a ______ .  (A) Both Step-Up and Step-Down transformer (B) Step-Down Transformer (C) Step-Up Transformer (D) None of these

asked May 8, 2018 in Electrical Engineering by Shimroz123
0 answers 12 views

During 3-phase short circuit on a unloaded alternator, the dc component may be zero in (1) One phase only (2) Any two phases (3) All three phases (4) None of the above 

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
0 answers 7 views

In a d.c. compound generator, ‘flat-compound’ characteristic, required for certain applications, may be obtained by connecting a variable resistance  A) Across the series field B) In series with the series field C) In parallel with the shunt field D) In series with the shunt field

asked Apr 9, 2018 in Electrical Machine by Zeeshan
1 answer 21 views

A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if?

asked Mar 22, 2018 in Engineering Mechanics by Shimroz123
0 answers 30 views

A cable has an insulation of relative permittivity 2. If the insulation is replaced by one of relative permittivity 4, then capacitance of the cable (a) is doubled (b) is halved (c) remains unchanged (d) is reduced 

asked May 25, 2018 in Physics by Shimroz123
1 answer 55 views
1 answer 19 views

Two port networks are connected in cascade. The parameters of the network are obtained by multiplying in individual

asked Apr 29, 2018 in Network Analysis by Shimroz123
0 answers 14 views

Short-circuit kVA is obtained by multiplying the base kVA by (1) 10% X (2) 20% X (3) 50% X (4) 100% X

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
0 answers 17 views

Gauge factor of about 5 can be obtained using strain gauge made of  A) Constantan B) Ferry C) Nichrome V D) Platinum

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

Earth coverage dish antenna is used in satellite system. It is characterized by the fact that  (a) It is a narrow beam antenna (b) It is Parabolic antenna (c) it is sharply focused within a small area of the surface of the earth (d) it is a wide angle antenna which covers a large area of the surface of the earth

asked May 15, 2018 in Electronics communication by Shimroz123
1 answer 17 views

 Full load current of an Induction motor is 20 Ampere. The no-load current may be expected to be: A) 25 Ampere to 28 Ampere B) 15 Ampere to 18 Ampere C) 11 Ampere to 14 Ampere D) 6 Ampere to 10 Ampere

asked Jun 4, 2018 in Induction Machine by Shimroz123
1 answer 13 views

The polar bonds existing in III-V compound semiconductor, may be considered as equivalent to  (a) 1 ionic bond and 3 covalent bonds (b) 1 ionic bond and 4 covalent bonds (c) 2 ionic bonds and 2 covalent bonds (d) 2 ionic bonds and 4 covalent bonds

asked May 15, 2018 in Semiconductor by Shimroz123
1 answer 13 views

The rating of transformer may be expressed in ____________.  (A) kVAR (B) kW (C) kVA (D) Horse power

asked May 8, 2018 in Electrical Engineering by Shimroz123
1 answer 7 views
1 answer 12 views

For an antenna to be frequency-independent, it should expand or contract in proportion to the  (a) gain (b) directivity (c) wavelength (d) impedance

asked May 15, 2018 in Electronics communication by Zeeshan
0 answers 6 views

Which technology is used in Compact disks?  A) Mechanical B) Electrical C) Electro Magnetic D) Laser

asked Apr 9, 2018 in Electrical Engineering by Shimroz123
0 answers 8 views

Super conducting materials can be used for (a) ore refining. (b) magnetic levitation in high speed trains. (c) medical resonance imaging. (d) All of the above  

asked May 26, 2018 in Physics by Shimroz123
1 answer 23 views

A reading of 120 is obtained when a standard inductor was connected in the circuit of a Q-meter and the variable capacitor is adjusted to a value of 300 pF. A lossless capacitor of unknown value Cx is then connected in parallel with the variable capacitor and the same reading was obtained when the variable capacitor is readjusted to a value of 200 pF. The value of Cx in pF is  A) 100 B) 200 C) 300 D) 500

asked May 20, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 24 views

A single-phase transformer has no-load loss of 64 W, as obtained from an open circuit test. When a short-circuit test is performed on it with 90% of the rated currents flowing in its both LV and HV windings, he measured loss is 81 W. The transformer has maximum efficiency when operated at  (A) 50.0% of the rated current (B) 64.0% of the rated current (C) 80.0% of the rated current (D) 88.8% of the rated current

asked May 17, 2018 in Transformer 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
0 answers 7 views

A circular radiation pattern is obtained using  A) Travelling wave antenna (TWA) B) Rhombic antenna C) Yagi antenna D) Turnstile antenna

asked Apr 9, 2018 in Electronics Engineering by Shimroz123
1 answer 21 views

"Maximum power output is obtained from a network when the load resistance is equal to the output resistance of the network as seen from the terminals of the load". The above statement is associated with?

asked Mar 25, 2018 in Network Analysis by Shimroz123
0 answers 18 views

In a stable control system saturation may cause : (A) Conditional Stability (B) High Level Oscillations (C) Overdamping (D) Low Level Oscillations

asked Mar 31, 2018 in Electrical Engineering by Shimroz123
1 answer 11 views

If a line is 100 % series compensated it may result into series resonance at power frequency of?

asked Mar 27, 2018 in Power system by Shimroz123
1 answer 23 views

A force acting on a body may?

asked Mar 22, 2018 in Engineering Mechanics 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 loss measure operation connected signal low applications effect single-phase network inductance 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
...