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 When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of the heater will None of these Decrease Remain constant Increase None of these Decrease Remain constant Increase ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A field of force can exist only between Two molecules Two metal particles Two ions Two atoms Two molecules Two metal particles Two ions Two atoms ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following material has nearly zero temperature co-efficient of resistance? Carbon Copper Manganin Porcelain Carbon Copper Manganin Porcelain ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The maximum current rating for a 10 kΩ, 0.5 W resistor is 7.07 mA 28.28 mA 0.707 mA 14.14 mA 7.07 mA 28.28 mA 0.707 mA 14.14 mA ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An instrument which detects electric current is known as Wattmeter Voltmeter Galvanometer Rheostat Wattmeter Voltmeter Galvanometer Rheostat ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS