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Electric Circuits

Electric Circuits
A periodic voltage having the Fourier series V(t)= {1 + 4sinω0t}

 1 W.
 11 W.
 21 W.
 24.5 W.

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Electric Circuits
Which of the following may be value of resistivity of copper?

 1.7 X 10 - 5.
 1.7 X 10 - 3.
 1.7 X 10 - 6.
 1.7 X 10 - 4.

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

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Electric Circuits
During electroplating the weight of substance deposited depends on

 shape of article.
 quantity of electricity.
 atmospheric humidity.
 room temperature.

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Electric Circuits
Consider the following circuit. In this circuit, when Vs = 3 V, I = 4 A, what is the value of I when Vs = 12 V?

 10 A.
 15 A.
 7 A.
 20 A.

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Electric Circuits
The maximum current rating for a 10 k Ω, 0.5 W resistor is

 28.28 mA.
 14.14 mA.
 7.07 mA.
 0.707 mA.

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MORE MCQ ON Electric Circuits

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