Current Electricity The substances which have a large number of free electrons and offer a low resistance are called Semi-conductors Insulators Inductors Conductors Semi-conductors Insulators Inductors Conductors 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 resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms, what is the resistance of the other? 18 Q 48 Q 64 Q 36 Q 18 Q 48 Q 64 Q 36 Q ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In which of the following substances the resistance decreases with increase in temperature? Silver Carbon Copper Constantan Silver Carbon Copper Constantan ANSWER DOWNLOAD EXAMIANS APP
Current Electricity For testing appliances, the wattage of test lamp should be High Very low Any value Low High Very low Any value Low ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Conductivity is the reciprocal of Resistivity Current density None of the listed here Resistance Resistivity Current density None of the listed here Resistance ANSWER DOWNLOAD EXAMIANS APP
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