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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
 5 µF
 40 µF
 160 µF

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Electric Circuits
What are the points to be mentioned in specifying main switches?

  Voltage grade.
  Both A and B.
  None of these.
  Current rating.

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Electric Circuits
Two identical resistors are first connected in parallel then in series. The ratio of resultant resistance of the first combination to the second will be

 2.
 0.25.
 0.5.
 4.

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Electric Circuits
Three capacitors each of capacity C are given. The resultant capacity (2/3) C can obtained by using them

 all in parallel.
 two in series and third in parallel across this combination.
 all in series.
 two in parallel and third in series with this combination.

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Electric Circuits
From the circuit diagram shown in question 1 find the thevnin voltage.

 5 V.
 15 V.
 1.5 V.
 3 V.

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Electric Circuits
If P is the power of a star connected system then what will be power of an equivalent delta connected system?

 3P
 P
None of these
 P/3

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