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Electric Circuits

Electric Circuits
Four capacitors each of 40 µF are connected in parallel, the equivalent capacitance of the system will be

 10 µF
 40 µF
 160 µF
 5 µF

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Electric Circuits
In foster 1 form 1st element is

 both.
 none.
 capacitor.
 inductor.

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Electric Circuits
The unit of resistivity is

 Ω.
 Ω / metre.
 Ω - metre.
 Ω / m².

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Electric Circuits
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?

 0.029.
 None of these.
 0.058 H.
 0.049 H.

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Electric Circuits
A current of 1 mA flows through a 1M ohm, 2 W carbon resistor. The power dissipated as heat in the resistor will be

 2 W.
 1 W.
 0.5 W.
None of these

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Electric Circuits
The capacity of a lead acid cell does not depends on its

 rate of discharge.
 rate of charge.
 quantity of active material.
 temperature.

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