Current Electricity · Physics · Class 12

Assertion (A) : The equivalent resistance between points A and B in the given network is 2R. Reason (R) : All the resistors are connected in parallel ...

The potential difference applied across a given conductor is doubled. How will this affect (i) the mobility of electrons and (ii) the current density ...

(a) Briefly describe how the current sensitivity of a moving coil galvanometer can be increased. (b) A galvanometer shows full scale deflection for cu...

(a) (i) Explain how free electrons in a metal at constant temperature attain an average velocity under the action of an electric field. Hence obtain a...