ELECTRIC CIRCUITS QUIZ

In which of the circuits power factor can be zero?

inductive.

capacitive.

both ‘a’ and ‘b’

resistive.

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What is a resistor?

Test

Inductor

Capacitor

Hello

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An ac voltage source v = vo sinωt is connected across a parallel plate capacitor C. If the conductor current is ic and the displacement current is id, then which is true among following relation

ic = id.

ic + id = 0.

ic < id.

ic > id.

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The delta equation of given star connected impedance ZQR is equal to

(5 + j10 / 3) Ω.

(10 + j30) Ω.

40 Ω.

(20 + j10) Ω.

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Electrolyte for silver plating is

dilute sulphuric acid.

any of above.

potassium nitrate solution.

double cyanide of silver and potassium solution.

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If C be the capacitance, V be the potential difference and I be the current, then I / CV will have the unit of

reactive power.

time.

frequency.

power.

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A capacitor passes a current of 12.6 mA when supplied with 20 V ac with a frequency of 1000 Hz. The capacitance will be

0.1 μF.

1 μF.

0.001 μF.

0.01 μF.

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Five capacitors each of 5 µF are connected in series, the equivalent capacitance of the system will be

5 µF

10 µF

25 µF

1 µF

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Power dissipation in ideal inductor is

Maximum

Zero

Minimum

A finite value

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When the battery is being charged, the terminal voltage decreases with

increasing state of charge.

increasing temperature.

increasing charging rate.

none of these.

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