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Electric Circuits

Electric Circuits
The value of unity impulse function at time (t) = 0 is

 1.
 indeterminate.
 infinite.
 0.

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Electric Circuits
Fillers in a lead acid battery are provided

 all of above.
 to facilitate flow of gases.
 to prevent flow of gases.
 to recover acid loss through vapours.

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Electric Circuits
The frequency of EMF generated by a generator depends upon its

 both speed and number of poles.
 number of poles.
 speed.
 nature of supply.

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Electric Circuits
In series R, L circuit power factor can be defined as

 Vr/V
 R/Z
All of these
 P/S

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Electric Circuits
In a series R, L circuit, voltage across resistor and inductor are 3 V and 4 V respectively, then what is the applied voltage?

 3V
 4V
 5V
 7V

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

 increasing charging rate.
 increasing state of charge.
 none of these.
 increasing temperature.

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