When two ends of a conductor are at different temperatures,the electromotive force generated between the two ends is known as:

What is the equivalent resistance of the circuit in $\Omega$?

In the given circuit,the $5\, \Omega$ resistor dissipates $45\, J/s$ of heat due to the current flowing through it. The power dissipated per second in the $12\, \Omega$ resistor will be .............. $W$.

If the galvanometer reading is zero,then the resistance $X = \dots \Omega$.

$A$ set of $n$ equal resistors,each of value $R$,are connected in series to a battery of emf $E$ and internal resistance $R$. The current drawn is $I$. Now,the $n$ resistors are connected in parallel to the same battery. The current drawn from the battery becomes $10I$. The value of $n$ is:

What is the reading of the voltmeter in the following figure (in $V$)?