Can you help by answering this question?

Ash content of Indian coal is

17 views
in Electrical Engineering by
The Fill Factor of a silicon solar cell is approximately 

 (a) 1 (b) 0.7 (c) 0.5 (d) 0 

Your answer

Thanks for your contribution. Feel free to answer this question. Please avoid short answer. Your answer is most welcome. Be genuine.

Upload image or document:

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
Are you a robot ? (Y = Yes / N = No)
To avoid this verification in future, please log in or register.

Related questions

0 answers 17 views

The efficiency of a solar cell can be expected in the range : (A) 10 to 15 percent (B) 25 to 30 percent (C) 45 to 60 percent (D) 70 to 80 percent

asked Mar 31, 2018 in Electrical Engineering by Shimroz123
1 answer 24 views
1 answer 14 views

A solar cell of 350 V is feeding power to an ac supply of 440 V, 50 Hz through a 3-phase fully controlled bridge converter. A large inductance is connected in the dc circuit to maintain the dc current at 20 A. If the solar cell resistance is 0.5 Ohm ,then each thyristor will be reverse biased for a period of  (A) 125o (B) 120o (C) 60o (D) 55o

asked May 18, 2018 in Power electronics converters by Shimroz123
1 answer 18 views

State the principle of solar cell. What is necessity of series and parallel connection of solar cells.

asked Sep 7, 2018 by Zeeshan
0 answers 19 views

Typical solar cell efficiency is   (a) Less than 5% (b) 12% to 25% (c) 30% to 40% (d) More than 50% 

asked Apr 10, 2018 in Electrical Engineering by Shimroz123
1 answer 56 views

Write how energy can be stored or generated in each of following : i) solar cell ii) geothermal energy iii) hydrogen energy in biomass.

asked Sep 8, 2018 by Shimroz123
1 answer 17 views

An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately equal to: A. 385Ω B. 38.5Ω C. 3.1Ω D. 31Ω

asked Apr 12, 2018 in Electrical Engineering by Shimroz123
0 answers 19 views

The amount of solar radiation received on a unit area exposed perpendicular to sunlight is termed as : (A) Solar insulation (B) Solar constant (C) Solar radiance (D) Solar insolation

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

In a clipper circuit with silicon diode and bias of V volts, the clipping level is (a) 0.7 V (c) V (b) V + 0.7 (d) 2V + 0.7

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

The energy radiated by Sun on a bright Sunny day is approximately:  (A) 700 W/m² (B) 800 W / m² (C) 1 kW / m² (D) 2 kW / m²

asked May 8, 2018 in Electrical Engineering by Shimroz123
1 answer 11 views
1 answer 20 views

A solar pond is a combination of :  (A) Solar energy storage and heat collection  (B) Solar energy collection and heat storage  (C) Solar energy collection and energy storage  (D) All the above

asked Apr 30, 2018 in Electrical Engineering by Shimroz123
1 answer 17 views

A resistance of 3.3 M ohms is connected across a 500 V source. The resulting current is approximately? A.15.1 μA B.151 μA C.66 mA D.660 mA

asked May 15, 2018 in Basic concepts by Zeeshan
0 answers 14 views

A change of 5% in supply voltage to an induction motor will produce a change of approximately (a) 5% in the rotor torque (b) 7.5% in the rotor torque (c) 10% in the rotor torque (d) 25% in the rotor torque

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 39 views

Fill in the blank(s) with the appropriate word(s)  i. A MOSFET operates in the ________________ mode when vGS < vGS(th)  ii. In the ohmic region of operation of a MOSFET vGS - vGS (th) is greater than ________________.  iii. rDS (ON) of a MOSFET ________________ with increasing vGS.  iv. In the active ... th) is almost ________________ in the active mode of operation.  ix. The safe operating area of a MOSFET is restricted on the left hand side by the ________________ limit. 

asked Apr 4, 2018 in MOSFET by Shimroz123
1 answer 7 views

The cut-in voltage of a silicon diode is approx. • 0.7 volt • 0.3 volt • 1.4 volt • None of the above.

asked May 14, 2018 in Diode by Shimroz123
1 answer 11 views

In air-core cable the surge voltage travels approximately at the speed of light and a cable of 100m length gives a delay of a. 0.666μsec b. 0.333μsec c. 1.555μsec d. 1μsec 

asked Sep 1, 2018 by Shimroz123
1 answer 21 views

A change of 4% in the supply voltage to an induction motor will produce a change of approximately

asked May 8, 2018 in Electrical Machine by Shimroz123
1 answer 13 views

A 17 inch personal computer uses approximately 150 watts in an hour. If you have same computer on for only 4 minutes (for checking e-mail) what would be the power consumption?  (A) 0.1 kW (B) 0.04 kW (C) 0.01 kW (D) None of the above

asked May 8, 2018 in Electrical Engineering by Shimroz123
0 answers 18 views

A single-phase AC arc welding transformer supplies approximately   (a) 100 volts at 0.35 power factor (b) 60 volts at 0.35 power factor (c) 220 volts at 0.8 power factor (d) 100 volts at 0.6 power factor

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

Why the emf of a cell is always greater than its terminal voltage? Explain the same.

asked Jul 5 by Shimroz123
0 answers 135 views

The cell reference fro a range of cells that starts in cell B1 and goes over to column G and down to row 10 is…  (1) B1-G10 (2) B1.G10 (3) B1;G10 (4) B1:G10

asked Apr 11, 2018 in Computer Engineering by Shimroz123
0 answers 33 views

The characteristic equation of a simple servo system is s2+6s+25=0. Damping factor of the system is: A) 3.2 B) 2.4 C) 1.8 D) 2.9

asked Jun 17, 2018 in Electrical Engineering by Shimroz123
1 answer 15 views

Which of the following relation is incorrect? A) capacity factor = utilization factor x load factor B) load factor x maximum load = average load C) demand factor x connected load = maximum demand D) none of these

asked Jun 17, 2018 in Electrical Engineering by Shimroz123
1 answer 43 views

For a short transmission line with r/x ratio of is 1.0, the regulation will be zero when the load power factor is

asked Apr 30, 2018 in Electrical Engineering by Shimroz123
1 answer 15 views

An inductor of Q factor 10 is connected in series with a capacitor having a Q factor of 100. The overall Q factor of the circuit is :  (A) 100/11 (B) 11/100 (C) 110 (D) 1000

asked Apr 30, 2018 in Electrical Engineering by Shimroz123
1 answer 27 views

Two wattmeters are used to measure the power in a 3 -phase balanced system. What is the power factor of the load when one wattmeter reads twice the other ?  (a) 0 (b) 0.5 (c) 0.866 (d) 1

asked Apr 23, 2018 in Electrical Engineering by Zeeshan
0 answers 70 views

. If the peak transmitted power in a radar system is increased by a factor of 16, the maximum range will be increased by a factor of : (A) 2 (B) 4 (C) 8 (D) 16

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
0 answers 24 views

The power factor of a spot welding machine is expected to be around (1) Unity (2) 0.8 lagging (3) 0.3-0.5 lagging (4) 0.8 leading 

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
0 answers 23 views

What is the maximum data rate that can be transmitted using a QPSK modulation with a roll-off factor of 0.2 for a 36 MHZ transponder?  A) 7.2 Mbps B) 30 Mbps C) 43.2 Mbps D) 60 Mbps

asked Apr 9, 2018 in Electrical Engineering by Shimroz123
0 answers 628 views

What is the power factor of a cable of loss angle “ө”?  (A) sin ө (B) cos ө (C) tan ө (D) Independent of ө 

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
0 answers 12 views

What is the pitch factor of a 4 pole alternator having 36 slots and a coil span of 1 to 8?  (A) 140° (B) 80° (C) 20° (D) 40°

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
0 answers 14 views

A single phase motor draws a current of 5 A from a 120 V, 60 Hz line. The power factor of the motor is 65%. Calculate the active power absorbed by the motor.  (A) 600 W (B) 390 W (C) 456 W (D) 650 W 

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 48 views

The power factor of a D.C. circuit is always?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 85 views

The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 31 views

Which of the following elements are used as dopants in silicon or germanium semiconductors? A) Antimony B) Phosphorus C) Arsenic D) All the above

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
0 answers 12 views

Internal resistance of a cell depends on  (A) Terminal voltage (B) Torque (C) Current (D) Area of the plates 

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 16 views

If a cell connection is reversed in parallel group, what will happen? A. Open circuit B. All cells will be equally charged C. short circuit D. Nothing will happen 

asked Apr 12, 2018 in Electrical Engineering by Shimroz123
0 answers 59 views

Load cell essentially is a   (a) Thermistor (b) Strain gauge (c) Photo-voltaic cell (d) None of these

asked Apr 10, 2018 in Electrical Engineering by Shimroz123
0 answers 18 views

What is a load cell?  (A) A strain gauge (B) A photo voltaic cell (C) A thermistor (D) A pressure pick up device

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 12 views

Fill in the blank(s) with the appropriate word(s)  i. A MOSFET is a ________________ controlled ________________ carrier device.  ii. Enhancement type MOSFETs are normally ________________devices while depletion type MOSFETs are normally ________________ devices.  iii. The Gate terminal of a MOSFET is ... the ________________ voltage.  vi. The thickness of the ________________ layer remains constant as gate source voltage is increased byond the ________________ voltage. 

asked Apr 4, 2018 in MOSFET by Shimroz123
1 answer 20 views

In fuel cell the __________ energy is converted into electrical energy.  (A) Mechanical (B) Chemical (C) Heat (D) Sound

asked May 8, 2018 in Electrical Engineering by Shimroz123
1 answer 20 views

If temperature of a pure silicon specimen is increased, then (a) only number of free electrons increase. (b) only number of free holes increase. (c) number of free holes and free electrons increases. (d) only number of free holes decrease. 

asked May 25, 2018 in Physics by Shimroz123
0 answers 13 views

A silicon p-n junction at a temperature of 20 °C has a reverse saturation current of 10 pA. The reverse saturation current at 40 °C will approximately be (a) 30 pA (b) 40 pA (c) 50 pA (d) 60 pA

asked May 25, 2018 in Physics by Shimroz123
1 answer 18 views

Approximately how many milliamperes of current flow through a circuit with a 40 V source and 6.8 k ohms of resistance? A.27.2 mA B.59 mA C.5.9 mA D.590 mA

asked May 15, 2018 in Basic concepts by Shimroz123
1 answer 29 views

Which of the following semiconductor materials is (are) used for manufacturing solar cells?  (1) Gallium arsenide (2) Indium arsenide (3) Cadmium sulfide (4) All of these

asked Apr 9, 2018 in Electronics Engineering by Shimroz123
1 answer 14 views

The Maximum spectral response of the germanium and silicon is in the   (A) infrared region (B) ultraviolet region (C) visible region (D) x-ray region

asked May 16, 2018 in Semiconductor by Shimroz123
0 answers 14 views

Thin films of SiN are well suited as anti-reflection coating for Si solar cells because of their optical properties (a) Refractive index and Absorption coefficient . (b) Refractive index and Adsorption coefficient (c) Reflective index and Absorption coefficient (d) Reflective index and Adsorption coefficient

asked Apr 14, 2018 in Electrical Engineering 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

8,524 questions

7,122 answers

135 comments

3,090 users

...