54 questions in Chapter 3 Current Electricity - HI MCQ!

To minimise the power loss in the transmission cables connecting the power stations to homes and factories, the transmission cables carry current?

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Sensitivity of potentiometer can be increased by?

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Why is the Wheatstone bridge better than the other methods of measuring resistances?

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A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves?

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In the absence of an electric field, the mean velocity of free electrons in a conductor at absolute temperature (T) is?

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The Kirchhoff’s second law (iR = E), where the symbols have their usual meanings, is based on?

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In the equation AB = C, A is the current density, C is the electric field, Then B is?

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Two cells of emfs approximately 5 V and 10 V are to be accurately compared using a potentiometer of length 400 cm.?

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The unit of specific resistance is?

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Which of the following characteristics of electrons determines the current in a conductor?

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