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Earn 100

Discuss the method of determination of unknown resistance by metre bridge method.

Important Questions on Current Electricity
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Explain drift of electrons and the origin of resistivity in conductors.
OR
Explain working of chemical cell. How emf is realised in a chemical cell and describe the relation between emf and internal resistance of the cell.

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The equivalent resistance between the points and is

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In the given circuit, total power consumed is The value of resistance is

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IMPORTANT

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The resistance of the four arms and in a Wheatstone's bridge are and respectively as shown in figure. Current through the galvanometer will be

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IMPORTANT

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The length of slide wire bridge is long. Where should be free end of the galvanometer be connected on so that galvanometer may show zero deflection?
