Current Electricity The resistance of conductor varies inversely as Length Temperature Area of cross-section Resistivity Length Temperature Area of cross-section Resistivity ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The weight of an aluminium conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is 0.6 1 1.5 0.5 0.6 1 1.5 0.5 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A copper wire has a resistance of 10 Ω. It is stretched by one-tenth of its original length. Then its resistance will be 12.1 Ω 11 Ω 9 Ω 10 Ω 12.1 Ω 11 Ω 9 Ω 10 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In the case of direct current 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 Magnitude and direction of current changes with time Magnitude of current remains constant Magnitude and direction of current remains constant ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A wire having very high value of conductance is said to be Insulator None of the listed here Moderately good conductor Very good conductor Insulator None of the listed here Moderately good conductor Very good conductor 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 1.8 x 10-8 ω-m 1.4 x 10-8 ω-m 1.2 x 10-8 ω-m 1.6 x 10-8 ω-m 1.8 x 10-8 ω-m 1.4 x 10-8 ω-m 1.2 x 10-8 ω-m 1.6 x 10-8 ω-m ANSWER DOWNLOAD EXAMIANS APP
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