Current Electricity Resistance of a carbon filament lamp _______ as the applied voltage increases. Decreases None of the listed here Remains same Increases Decreases None of the listed here Remains same Increases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of a material always decreases if Number of free electrons available becomes more None of these Temperature of material is decreased Temperature of material is increased Number of free electrons available becomes more None of these Temperature of material is decreased Temperature of material is increased 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 1.2 x 10-8 ω-m 1.6 x 10-8 ω-m 1.4 x 10-8 ω-m 1.8 x 10-8 ω-m 1.2 x 10-8 ω-m 1.6 x 10-8 ω-m ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A closed switch has a resistance of Zero About 500 ohms Infinity About 50 ohms Zero About 500 ohms Infinity About 50 ohms ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In the case of direct current Magnitude and direction of current changes with time Magnitude of current remains constant Magnitude and direction of current remains constant Magnitude of current changes with time Magnitude and direction of current changes with time Magnitude of current remains constant Magnitude and direction of current remains constant Magnitude of current changes with time ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The current in the circuit having constant resistance is tripled. The power increases 3 times 1/9 times 9 times 1/3 times 3 times 1/9 times 9 times 1/3 times ANSWER DOWNLOAD EXAMIANS APP
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