Current Electricity Which of the following is the best conductor of electricity? Zinc Silver Gold Copper Zinc Silver Gold Copper ANSWER DOWNLOAD EXAMIANS APP
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 Decreases Increases Heater will burn out Remains same Decreases Increases Heater will burn out ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric current passing through the circuit produces Magnetic effect Chemical effect Luminous effect Thermal effect Magnetic effect Chemical effect Luminous effect Thermal effect ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be 1/3 times 3 times 1/9 times 9 times 1/3 times 3 times 1/9 times 9 times ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of the heater will Remain constant Increase Decrease None of these Remain constant Increase Decrease None of these ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Three 60 W bulbs are in parallel across the 60 V power line. If one bulb burns open Rest of the two bulbs will not light The other two bulbs will light There will be heavy current in the main line All three bulbs will light Rest of the two bulbs will not light The other two bulbs will light There will be heavy current in the main line All three bulbs will light ANSWER DOWNLOAD EXAMIANS APP
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