In the circuit diagram shown, each battery is ideal having an e.m.f. of $1\  volt$. Each resistor has a resistance of $1\Omega $ Ammotor$(A)$ has a resistance of $1\Omega $ Find the reading of the ammeter and the total thermal power produced in the circuit 

Which of the following graphs represent the variation of power loss in the external load with external resistance $R$?

A heater coil is cut into two equal parts and only one part is now used in the heater. The heat generated will now be

Two electric bulbs whose resistances are in the ratio of $1 : 2$ are connected in parallel to a constant voltage source. The powers dissipated in them have the ratio

This question has Statement $1$ and Statement $2.$ Of the four choices given after the Statements, choose the one that best describes the two Statements.

Statement $1 :$ The possibility of an electric bulb fusing is higher at the time of switching $ON.$

Statement $2:$ Resistance of an electric bulb when it is not lit up is much smaller than when it is lit up.

What will happen when a $40\, watt$, $220\, volt$ lamp and $100\, watt$, $220\, volt$ lamp are connected in series across $40\, volt$ supply