Current Electricity If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes 0.6 ohm 0.8 ohm 0.4 ohm 1.0 ohm 0.6 ohm 0.8 ohm 0.4 ohm 1.0 ohm ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An instrument which detects electric current is known as Voltmeter Rheostat Wattmeter Galvanometer Voltmeter Rheostat Wattmeter Galvanometer ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric current passing through the circuit produces Magnetic effect Luminous effect Chemical effect Thermal effect Magnetic effect Luminous effect Chemical effect Thermal effect ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a lamp load when more than one lamp are switched on the total resistance of the load Remains same Decreases Increases None of these Remains same Decreases Increases None of these ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A rheostat differs from potentiometer in the respect that it Offers large number of tapping Has large number of turns Has higher wattage rating Has lower wattage rating Offers large number of tapping Has large number of turns Has higher wattage rating Has lower wattage rating ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Temperature coefficient of resistance is expressed in terms of mhos/°C ohms/ohm°C ohms/°C mhos/ohm°C mhos/°C ohms/ohm°C ohms/°C mhos/ohm°C ANSWER DOWNLOAD EXAMIANS APP
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