List of top Physics Questions on Current electricity asked in Rajasthan PMT

If on applying the potential of 20 V on a conductor its conductance becomes $ 8\,{{(\Omega )}^{-1}}, $ then the current flowing through it will be

The value of current J in the circuit will be

The relation between amplification factor $ (\mu ), $ plate resistance $ ({{r}_{p}}) $ and mutual conductance $ ({{g}_{m}}) $ of a triode valve is given by