The resistance of the four arms of a Wheatstone bridge are P=`10Omega` , Q = `100Omega`, R=`40Omega` and S `=10Omega`. What resistance in series or pa
The resistance of the four arms of a Wheatstone bridge are P=`10Omega` , Q = `100Omega`, R=`40Omega` and S `=10Omega`. What resistance in series or parallel with the last one will be required to obtain no deflection in the galvanometer?
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