Questions in Current Electricity

Select	Question
	A 25 watt, 220 volt bulb and a 100 watt, 220 volt bulb are connected in parallel across a 220 volt line. Which bulb will glow more brightly
	If two bulbs of wattage 25 and 100 respectively each rated at 220 volt are connected in series with the supply of 440 volt, then which bulbs will fuse
	If current in an electric bulb changes by 1%, then the power will change by
	Two identical batteries, each of e.m.f. 2 volt and internal resistance 1.0 ohm are available to produce heat in an external resistance $R = 0.5$ohm by passing a current through it. The maximum Joulean power that can be developed across R using these batteries is
	A constant voltage is applied between the two ends of a metallic wire. If both the length and the radius of the wire are doubled, the rate of heat developed in the wire
	The heating coils rating at 220 volt and producing 50 cal/sec heat are available with the resistances $55\,\Omega ,\;110\,\Omega ,\;220\,\Omega $ and $440\,\Omega $. The heater of maximum power will be of
	Which of the following statement is false
	On an electric heater 220 volt and 1100 watt are marked. On using it for 4 hours, the energy consumed in kWh will be
	An electric heater kept in vacuum is heated continuously by passing electric current. Its temperature
	Heat produced in a wire of resistance R due to current flowing at constant potential difference is proportional to