" An incandescent lamp of resistance "80Omega" draws a current of "0.75A" .Find the line voltage "

An incandescent lamp of resistance 80 Omega draws a current of 0.75 A . Find the line voltage.

An incandescent lamp draws a current of 0.5 ampere. How many electrons are passing through the filament of lamp every hour ?

In common emitter transistor, the input resistance is 200Omega and bad resistance is 40kOmega . If current gain is 80 then voltage gain is

In a step up transformer, the turn ratio is 1:10. A resistance of 200 Omega connected across the secondary draws a current of 0.5 A. What is the primary voltage?

Assuming that the silicon diode having resistance of 20 Omega , the current through the diode is (knee voltage 0.7 V)