If five equal pieces of wire having $5\, \Omega$ resistance are made and connected in parallel, then their equivalent resistance will be $......$
$\frac{1}{5}\, \Omega$
$1\, \Omega$
$5\, \Omega$
$25\, \Omega$
Which of the following represents voltage?
$(a)$ Explain why a conductor offers resistance to the flow of current.
$(b)$ Differentiate between conductor, resistor and resistance.
An electric kettle consumes $1\, kW$ of electric power when operated at $220\, V$. A fuse wire of what rating (in $A$) must be used for it?
Given reason for the following
$(i)$ Tungsten used almost exclusively for filament of electric lamp.
$(ii)$ Why do we use copper and aluminium wires for transmission of electric current ?
Define one ampere.