Current Electricity The current in the circuit having constant resistance is tripled. The power increases 1/3 times 1/9 times 9 times 3 times 1/3 times 1/9 times 9 times 3 times ANSWER DOWNLOAD EXAMIANS APP
Current Electricity It becomes more difficult to remove First electron from the orbit Third electron from the orbit Any electron from the orbit Second electron from the orbit First electron from the orbit Third electron from the orbit Any electron from the orbit Second electron from the orbit ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a copper wire 200 m long is 21 ω. If its thickness (diameter) is 0.44 mm, its specific resistance is around 1.4 x 10-8 ω-m 1.8 x 10-8 ω-m 1.6 x 10-8 ω-m 1.2 x 10-8 ω-m 1.4 x 10-8 ω-m 1.8 x 10-8 ω-m 1.6 x 10-8 ω-m 1.2 x 10-8 ω-m 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 Heater will burn out Increases Decreases Remains same Heater will burn out Increases Decreases 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 Negative Positive None of the listed here Zero Negative Positive None of the listed here Zero ANSWER DOWNLOAD EXAMIANS APP
Current Electricity With rise in temperature the resistance of pure metals Increases First increases and then decreases Decreases Remains constant Increases First increases and then decreases Decreases Remains constant ANSWER DOWNLOAD EXAMIANS APP
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