ELECTRIC CIRCUITS QUIZ

Under resonance condition the power factor of a system is

lagging

any of the above

leading

unity

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In RC series circuit R = 2Ω, C = 2μF and 10V dc is applied. Then what is the value of current?

2A

0A

10A

5A

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The value of supply voltage for 400 W, 4 Ω load is

20 V.

400 V.

200 V.

40 V.

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A capacitor having a mica dielectric εR = 6, a plate area of a 10 inches2 and a separation 0.01 inch. Find the value of C

0 F.

1.349 μF.

1.349 nF.

1.349 F.

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Which of the following quantities consists of SI unit as WATT ?

Charge

Force

Current

Power

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Which of the following substance when added to electrolyte promotes smooth deposition?

Glucose.

Albumen.

Any of above.

Gelatine.

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A coil with negligible resistance has 50 V across it with 10 mA. The inductive reactance is

5000 ohms.

500 ohms.

50 ohms.

1000 ohms.

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What is time period T?

Time taken by an alternating quantity to complete the (-)ve half.

Time taken by an alternating quantity to complete the (+)ve half.

Time taken by an alternating quantity to complete one full cycle.

Time taken by an alternating quantity to reach the peak value.

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Internal resistance of ideal voltage source is

100 ohms

infinite

zero

finite

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In a series resonance circuit if bandwidth is 1 MHz and inductance is 1 mH, then what is the resistance value?

1 MΩ

1 KΩ

1 Ω

100 Ω

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