Current Electricity What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω? 150 V 100 V 50 V 200 V 150 V 100 V 50 V 200 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A copper wire is stretched so that its length is increased by 0.1 % . The change in its resistance is 0.4% 0.3% 0.2% None of the listed here 0.4% 0.3% 0.2% None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The flow of current in solids is due to Electrons Atoms Nucleus Electrons and ions Electrons Atoms Nucleus Electrons and ions ANSWER DOWNLOAD EXAMIANS APP
Current Electricity International ohm is defined in terms of the resistance of The unit length of wire A cube of carbon A cube of copper A column of mercury The unit length of wire A cube of carbon A cube of copper A column of mercury ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In the case of direct current Magnitude and direction of current changes with time Magnitude of current changes with time Magnitude of current remains constant Magnitude and direction of current remains constant Magnitude and direction of current changes with time Magnitude of current changes with time Magnitude of current remains constant Magnitude and direction of current remains constant ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following materials has the least resistivity ? Lead Mercury Zinc Copper Lead Mercury Zinc Copper ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS