Current Electricity Which of the following materials has the least resistivity ? Mercury Zinc Lead Copper Mercury Zinc Lead Copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A resistance having rating 10 ohms , 10 W is likely to be a Wire wound resistor Metallic resistor Carbon resistor Variable resistor Wire wound resistor Metallic resistor Carbon resistor Variable resistor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a straight conductor is independent of Temperature Material Shape of cross-section Cross-sectional area Temperature Material Shape of cross-section Cross-sectional area ANSWER DOWNLOAD EXAMIANS APP
Current Electricity E. M. F. In a circuit None of the listed here Maintains potential difference Decrease circuit resistance Increases circuit resistance None of the listed here Maintains potential difference Decrease circuit resistance Increases circuit resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Insulators have _______ temperature co-efficient of resistance. Positive None of the listed here Negative Zero Positive None of the listed here Negative Zero ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a conductor varies inversely as Length Temperature Resistivity Are of cross-section Length Temperature Resistivity Are of cross-section ANSWER DOWNLOAD EXAMIANS APP
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