Current Electricity An instrument which detects electric current is known as Rheostat Voltmeter Wattmeter Galvanometer Rheostat Voltmeter Wattmeter Galvanometer ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the number of valence electrons of an atoms is less than 4,the substance is usually An insulator A conductor None of the listed here A semiconductor An insulator A conductor None of the listed here A semiconductor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following materials has the least resistivity ? Lead Copper Mercury Zinc Lead Copper Mercury Zinc ANSWER DOWNLOAD EXAMIANS APP
Current Electricity E. M. F. In a circuit Maintains potential difference None of the listed here Decrease circuit resistance Increases circuit resistance Maintains potential difference None of the listed here Decrease circuit resistance Increases circuit resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The specific resistance of a metallic conductor ______ with rise in temperature. Decreases Increases None of the listed here Remains unchanged Decreases Increases None of the listed here Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The flow of current in solids is due to Nucleus Electrons Electrons and ions Atoms Nucleus Electrons Electrons and ions Atoms ANSWER DOWNLOAD EXAMIANS APP