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Current Electricity Quiz 3

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10 Question

Popular Questions In Current Electricity Quiz 3

  • The drift velocity of the free electrons in a conductor is independent of

  • The direction of drift velocity in a conductor is

  • The drift velocity of free electrons in a conductor is VdV_d, when the current is flowing in it. If both the radius and current are doubled, the drift velocity will be

  • The drift velocity vd of electrons varies with electric field strength E as

  • When a current I is set up in a wire of radius r, the drift speed is v . If the same current is set up through a wire of radius 2r, then the drift speed will be

  • When potential difference is applied across an electrolyte, then Ohm’s law is obeyed at

  • A current of 1.6 A is passed through an electric lamp for half a minute. If the charge on the electron is 1.6×10191.6 \times 10^{-19} C, the number of electrons passing through it is

  • The SI unit of the emf of a cell is

  • The unit of specific resistance is

  • If the length of a conductor is halved, then its conductivity will be