Current Electricity The resistance of conductor varies inversely as Resistivity Length Temperature Area of cross-section Resistivity Length Temperature Area of cross-section ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An instrument which detects electric current is known as Voltmeter Wattmeter Galvanometer Rheostat Voltmeter Wattmeter Galvanometer Rheostat ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Current velocity through a copper conductor is nearly 3 x 108 m/s independent of current strength of the order of a few ^.s/m the same as propagation velocity of electric energy nearly 3 x 108 m/s independent of current strength of the order of a few ^.s/m the same as propagation velocity of electric energy ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Voltage dependent resistors are used To suppress surges As heating elements As current stabilizers For inductive circuits To suppress surges As heating elements As current stabilizers For inductive circuits ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of the heater will Increase Decrease Remain constant None of these Increase Decrease Remain constant None of these ANSWER DOWNLOAD EXAMIANS APP
Current Electricity What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω? 100 V 50 V 150 V 200 V 100 V 50 V 150 V 200 V ANSWER DOWNLOAD EXAMIANS APP
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