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Electric Circuits

Electric Circuits
The form factor of sinusoidal alternating current is

 1.
 1.15.
 0.
 1.11.

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Electric Circuits
In above question, if circuit efficiency is 90 %. What will be output power ?

  30 kW.
  35.6 kW.
  37.3 kW.
  40 kW.

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Electric Circuits
If two point charges are denoted by + Q and - Q and distance between this charges is d, then the dipole moment P equal to

  Q2 × d.
  Q × d.
  Q / d2.
  Q2 / d.

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Electric Circuits
In the circuit shown below, find the thevnin equivalent resistance.

 5/6 Ohm.
 1.5 Ohm.
 5 Ohm.
 6/5 Ohm.

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Electric Circuits
Four bulbs of 40 W each are connected in series with a battery across them, which of the following statement is true?

 The voltage across each bulb is not same.
None of these
 The current through each bulb is same.
 The power dissipation in each bulb is not same.

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Electric Circuits
i) In star connection line current is equal to phase current. ii) In delta connection line voltage is equal to phase voltage. For a given phase connected to the particular line which of the statement is true ?

 Only (1).
 Only (2).
 Both (1) and (2).
 None of these.

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