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Electric Circuits

Electric Circuits
Which of the following quantities remain the same in all parts of a parallel circuit

 current.
 power.
 resistance.
 voltage.

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Electric Circuits
Magnetic flux has the unit of

  Tesla
 Weber
 Ampere turn
 Newton

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Electric Circuits
The laplace transform of the fuction f(t) = t is

 s.
 1/s2.
 s2.
 1/s.

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Electric Circuits
Three resistances have the following ratings 150 Ω at 5 %, 100 Ω at 5 % and 200 Ω at 5 % respectively. The percentage error when all the three are connected in series will be

 + 8 %.
  + 6 %.
  + 5 %.
 + 7 %.

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Electric Circuits
In direct arc furnace which of following is of high value?

 Current.
 All of above.
 Power factor.
 Voltage.

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Electric Circuits
Which quantity should be measured by the voltmeter ?

 Voltage
 Power
 Speed
 Current

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