Current Electricity

Related Questions

• A resistance of $4\,\Omega $ and a wire of length 5 metres and resistance $5\,\Omega $ are joined in series and connected to a cell of e.m.f. 10 V and internal resistance $1\,\Omega $. A parallel combination of two identical cells is balanced across 300 cm of the wire. The e.m.f.E of each cell is

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• We are able to obtain fairly large currents in a conductor because

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• A wire has a resistance of 12 ohm. It is bent in the form of equilateral triangle. The effective resistance between any two corners of the triangle is

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• An infinite sequence of resistance is shown in the figure. The resultant resistance between A and B will be, when ${R_1} = 1\,ohm$ and ${R_2} = 2\,ohm$

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• In the experiment of potentiometer, at balance, there is no current in the

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