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Electric Circuits

Electric Circuits
What is the frequency of domestic power in India?

 220 Hz.
 60 Hz.
 50 Hz.
 70 Hz.

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Electric Circuits
A 6 V lead acid battery has an internal resistance of 0.01 Ω. How much current will flow when the battery is short circuited?

 100 A.
 6 A.
 1 A.
 600 A.

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Electric Circuits
In a lead acid cell PbSO4 formed during

  charging only.
  discharging only.
  neither during charging nor discharging.
  both during charging as well as discharging.

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Electric Circuits
In direct arc furnace which of following is of high value?

 Voltage.
 Power factor.
 All of above.
 Current.

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Electric Circuits
The maximum current rating for a 10 k Ω, 0.5 W resistor is

 28.28 mA.
 7.07 mA.
 14.14 mA.
 0.707 mA.

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Electric Circuits
A constant voltage source has

 high internal resistance.
 low internal resistance.
 minimum efficiency.
 minimum current capacity.

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MORE MCQ ON Electric Circuits

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