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Electric Circuits

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

 Current
 Charge
 Force
 Power

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Electric Circuits
The synchronous speed for the seventh space harmonic mmf wave of 8 pole, 50 Hz induction machine will be

 107.14 rpm in forward direction.
 5250 rpm in forward direction.
 107.14 rpm in reverse direction.
 5250 rpm in reverse direction.

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Electric Circuits
Sulphation in a lead acid battery occurs due to

 trickle charging.
 fast charging.
 incomplete charging.
 heavy charging.

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Electric Circuits
Five capacitors each of 5 µF are connected in series, the equivalent capacitance of the system will be

 10 µF
 25 µF
 5 µF
 1 µF

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Electric Circuits
In RLC parallel circuit current through resistor, inductor and capacitor are 10A, 5A and 5A respectively. What is the total current in the circuit?

 20A
 0A
 5A
 10A

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Electric Circuits
What is form factor?

 Average value / R.M.S. value.
 Instantaneous value / Average value.
 Average value / Peak value.
  R.M.S. value / Average value.

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