1

AP EAPCET 2022 - 4th July Evening Shift

MCQ (Single Correct Answer)

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The electrons take $$40 \times 10^3$$ s to dirift from one end of a metal wire of length 2 m to its other end. The area of cross-section of the wire is $$4 \mathrm{~mm}^2$$ and it is carrying a current of 1.6 A. The number density of free electrons in the metal wire is

2

AP EAPCET 2022 - 4th July Evening Shift

MCQ (Single Correct Answer)

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-0

The current 'I' in the circuit shown in the figure is

3

AP EAPCET 2022 - 4th July Morning Shift

MCQ (Single Correct Answer)

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Current density in a cylindrical wire of radius $$R$$ varies with radial distance as $$\beta\left(r+r_0\right)^2$$. The current through the section of the wire shown in the figure is

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AP EAPCET 2022 - 4th July Morning Shift

MCQ (Single Correct Answer)

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A cell can supply currents of 1 A and 0.5 A via resistances of $$2.5 \Omega$$ and $$10 \Omega$$, respectively. The internal resistance of the cell is

Questions Asked from Current Electricity (MCQ (Single Correct Answer))

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Physics

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