Current Electricity

Related Questions

• Three resistances $4\,\Omega $ each of are connected in the form of an equilateral triangle. The effective resistance between two corners is

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• What will be the equivalent resistance between the two points A and D

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• In the diagram shown, the reading of voltmeter is 20 V and that of ammeter is 4 A. The value of R should be (Consider given ammeter and voltmeter are not ideal)

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• Four wires AB, BC, CD, DA of resistance 4 ohm each and a fifth wire BD of resistance 8 ohm are joined to form a rectangle ABCD of which BD is a diagonal. The effective resistance between the points A and B is

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• Every atom makes one free electron in copper. If 1.1 ampere current is flowing in the wire of copper having 1 mm diameter, then the drift velocity (approx.) will be (Density of copper $= 9 \times {10^3}\,kg\,{m^{ - 3}}$ and atomic weight = 63)

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