describe meter bridge shortly
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Meter bridge is a wheatstone bridge in which one lateral pair of resistances is replaced by a straight wire of length 1m of uniform cross section. And other pair consist of one known and one unknown resistance. One side of a galvanometer is connected between known ad unknown resistance and other side is moved along the wire to find the null point i.e. at which galvanometer doesn't show any deflection. This point balances the bridge.
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A uniform resistance wire 1 meter in length, mounted above a scale marked in millimeters, with terminals added to make the device usable as either part of a Wheatstone bridge or of a potentiometer.
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