Two identical bulbs are connected in parallel across an ideal source of emf $E$. The ammeter $A$ and voltmeter $V$ are ideal. If bulb $B_2$ gets fused, then
Reading of $A$ will increase but that of $V$ will remain same
Reading of $A$ will decrease but that of $V$ will increase
Reading of $A$ will decrease but that of $V$ will remain same
Reading of $A$ will increase and reading of $V$ will also increase
Wheat stone bridge is balanced. Find ratio of electric power dissipated in $(P + Q)$ to $(R + S)$
Two electric bulbs rated ${P_1}\,watt$ $V\, volts$ and ${P_2}\, watt$ $V\, volts$ are connected in parallel and $V\, volts$ are applied to it. The total power will be
In the figure shown the power generated in $y$ is maximum when $y = 5\,\Omega$ . Then $R$ is .............. $\Omega$
The brightness of a bulb will be reduced, if a resistance is connected in
Considering the following circuit, select the correct alternative