four resistances p q r x formed a wheat stone bridge. the bridge is balanced when r is 100 ohms . if p and q is interchanged the bridge balance 121 ohms for r. what is the value of x
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x= 110 ohm.
in the first case: p/q = 100/x
so x = 100q/p .........(1)
in the nxt case, q/p= 121/x
so x= 121p/q. ...........(2)
eqn 1. and 2. are same... so by equating... ans is 110 ohm
in the first case: p/q = 100/x
so x = 100q/p .........(1)
in the nxt case, q/p= 121/x
so x= 121p/q. ...........(2)
eqn 1. and 2. are same... so by equating... ans is 110 ohm
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