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Electric Circuits

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

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

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Electric Circuits
The arrangement of 12 cells each of internal resistance 1.5 Ohm to give maximum current in external load resistance of 2 Ohm will be

 all 12 in parallel.
 in 3 parallel rows each row having 4 cells in series.
 in 4 parallel rows each row having 3 cells in series.
 all 12 in series.

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Electric Circuits
A parallel plate capacitor with air as dielectric, force between plate is F. If capacitor is now immersed water of dielectric εr, force between plate will be –

 F εr.
 0.
 F.
 εr/F.

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Electric Circuits
In a lead acid cell PbSO4 formed during

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

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Electric Circuits
Capacitor does not allow the sudden change of

 power
 voltage
None of these
 current

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Electric Circuits
1 F is theoretically equal to

 ratio of 1 V to 1 C
 1 ohm of resistance
 ratio of 1 C to 1 V
 none of these

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