what is null point in metre bridge
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The metre bridge, also known as the slide wire bridge consists of a one metre long wire of uniform cross sectional area, fixed on a wooden block. ... As the jockey slides over the wire AC, it shows zero deflection at the balancing point (null point). If the length AB is , then the length BC is ( 100-l ).
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In physics a null is a point in a field where the field quantity is zero as the result of two or more opposing quantities completely cancelling each other.
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