ELECTRIC CIRCUITS QUIZ

The current in a chemical cell is a movement of

positive hole charges.

positive ions only.

positive and negative ions.

negative ions only.

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A parallel plate capacitor has a capacitance of C farad. It area of the plates is doubled and the distance between them is half, the capacitance of the capacitor is

4C Farad.

16C Farad.

C Farad.

2C Farad.

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In which of the following networks it is not possible to find the transient free response?

RLC

RC

RL

RL, RC, and RLC

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For cadium plating electrolyte used is

cadmium sulphate and sulphuric acid.

any of above.

cadmium hexa metaphosphate.

sodium cyanide, cadmium and caustic soda.

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When 125 V is applied across a 250 V, 100 W filament incandescent bulbs, the power consumption is

25 W.

12.5 W.

50 W.

100 W.

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In the figure given, the value of R is

10 Ω.

24 Ω.

18 Ω.

12 Ω.

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For closer tolerance which of the following capacitors is usually preferred?

Ceramic disc capacitor.

Paper capacitor.

None of them.

Mica capacitor.

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Current source has internal impedance connected in parallel with it whereas voltage source has internal impedance connected in __________________ with it.

parallel

series

none of them

both of above

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Three identical inductors are connected in delta with a 220 V, 50 Hz, 3 - φ, supply. If the phase current is 24 A, then what is the value of each of the inductance?

None of these.

0.058 H.

0.029.

0.049 H.

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Which of the following is not equivalent to watts?

Amperes/volt.

Ampere2 – Ohm.

Ampere-volts.

Joules per second.

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