Current Electricity
JUPEB Physics

A $1500$ W electric kettle is used for $2$ hours. Calculate the electrical energy consumed, in joules.

At a junction in a circuit, currents of $3$ A and $2$ A flow into the junction and a current of $4$ A flows out along one wire. What is the current in the remaining wire?

A $4\ \Omega$ resistor is connected in series with a parallel combination of $6\ \Omega$ and $3\ \Omega$ resistors, and the whole arrangement is connected across a $12$ V supply of negligible internal…

A $4\ \Omega$ resistor is connected across a $12$ V battery of negligible internal resistance. Find the current.

Three resistors of $2\ \Omega$, $3\ \Omega$ and $5\ \Omega$ are connected in series. Find the total resistance.

A $6\ \Omega$ resistor and a $3\ \Omega$ resistor are connected in parallel. Find the combined resistance.

A current of $2$ A flows through a conductor for $5$ minutes. Find the charge that passes.

A bulb is rated $60$ W, $240$ V. Find the current it draws when operating normally.

The length of a uniform wire is doubled and its cross-sectional area is halved. Its resistance becomes

A battery of e.m.f. $12$ V and internal resistance $1\ \Omega$ is connected to a $5\ \Omega$ resistor. Find the terminal potential difference of the battery.

In a balanced Wheatstone bridge, the resistances in three arms are $2\ \Omega$, $4\ \Omega$ and $3\ \Omega$, arranged so that $\dfrac{2}{4} = \dfrac{3}{X}$. Find the unknown resistance $X$.

The current-voltage graph of a conductor is a straight line passing through the origin. The conductor is most likely