Current Electricity A 40 W bulb is connected in series with a room heater. If now 40 W bulb is replaced by 100 W bulb, the heater output will Remains same Heater will burn out Decreases Increases Remains same Heater will burn out Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An instrument which detects electric current is known as Wattmeter Voltmeter Rheostat Galvanometer Wattmeter Voltmeter Rheostat Galvanometer ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current. Inductor Resistor Reactor Capacitor Inductor Resistor Reactor Capacitor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The hot wire of electric bulb's filament is higher than its cold resistance because the temperature co-efficient of filament is Zero None of the listed here Negative Positive Zero None of the listed here Negative Positive ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An electric filament bulb can be worked from AC supply only Battery supply only DC supply only All of the listed here AC supply only Battery supply only DC supply only All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following is the best material for making connecting wires? Nichrome Manganin Constant Copper Nichrome Manganin Constant Copper ANSWER DOWNLOAD EXAMIANS APP