The units of resistance are ampere.

$A$ battery is a source of maintaining a constant potential difference across two ends of a conductor.

$n$ equal resistors are first connected in series and then connected in parallel. The ratio of the maximum to the minimum resistance is

Which one of the following is true according to Ohm's law?

$(a)$ Name the effect of electric current which is utilised in the working of an electrical fuse.
$(b)$ How is a fuse connected in a domestic circuit?

An electric heater consumes $1.1 \,kW$ power when $220 \,V$ voltage is applied to it. How much current will be flowing through it (in $,A$)?