Current Electricity

Related Questions

• The drift velocity of free electrons in a conductor is ‘v’ when a current ‘i’ is flowing in it. If both the radius and current are doubled, then drift velocity will be

  ---

• Potentiometer wire of length 1 m is connected in series with 490$\Omega $ resistance and 2V battery. If 0.2 mV/cm is the potential gradient, then resistance of the potentiometer wire is

  ---

• Two identical cells send the same current in $2\,\Omega $ resistance, whether connected in series or in parallel. The internal resistance of the cell should be

  ---

• An electric bulb is rated 220 volt and 100 watt. Power consumed by it when operated on 110 volt is

  ---

• A steady current $i$ is flowing through a conductor of uniform cross-section. Any segment of the conductor has

  ---