Current Electricity

Related Questions

• For a metallic wire, the ratio $V/i$$(V = $ the applied potential difference, i = current flowing) is

  ---

• The electric resistance of a certain wire of iron is R. If its length and radius are both doubled, then

  ---

• 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

  ---

• In the circuit shown, a meter bridge is in its balanced state. The meter bridge wire has a resistance 0.1 ohm/cm. The value of unknown resistance X and the current drawn from the battery of negligible resistance is

  ---

• Five resistances are connected as shown in the figure. The effective resistance between the points A and B is

  ---