Current Electricity A copper wire is stretched so that its length is increased by 0.1 % . The change in its resistance is 0.4% None of the listed here 0.2% 0.3% 0.4% None of the listed here 0.2% 0.3% ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A resistance having rating 10 ohms , 10 W is likely to be a Variable resistor Carbon resistor Wire wound resistor Metallic resistor Variable resistor Carbon resistor Wire wound resistor Metallic resistor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ohm's law is not applicable to Small resistors High currents Semi-conductors Dc circuits Small resistors High currents Semi-conductors Dc 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 Decrease Remain constant None of these Increase Decrease Remain constant None of these Increase ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes 0.4 ohm 0.8 ohm 0.6 ohm 1.0 ohm 0.4 ohm 0.8 ohm 0.6 ohm 1.0 ohm ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a conductor varies inversely as Temperature Are of cross-section Resistivity Length Temperature Are of cross-section Resistivity Length ANSWER DOWNLOAD EXAMIANS APP
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