Current Electricity The substances which have a large number of free electrons and offer a low resistance are called Conductors Insulators Inductors Semi-conductors Conductors Insulators Inductors Semi-conductors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity All good conductors have high Thermal conductivity Reluctance Conductance Resistance Thermal conductivity Reluctance Conductance Resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric current passing through the circuit produces Thermal effect Magnetic effect Chemical effect Luminous effect Thermal effect Magnetic effect Chemical effect Luminous effect ANSWER DOWNLOAD EXAMIANS APP
Current Electricity It becomes more difficult to remove Third electron from the orbit Second electron from the orbit First electron from the orbit Any electron from the orbit Third electron from the orbit Second electron from the orbit First electron from the orbit Any electron from the orbit ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a copper wire 200 m long is 21 ω. If its thickness (diameter) is 0.44 mm, its specific resistance is around 1.4 x 10-8 ω-m 1.8 x 10-8 ω-m 1.6 x 10-8 ω-m 1.2 x 10-8 ω-m 1.4 x 10-8 ω-m 1.8 x 10-8 ω-m 1.6 x 10-8 ω-m 1.2 x 10-8 ω-m ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 5 : 2 4 : 25 25 : 4 2 : 5 5 : 2 4 : 25 25 : 4 2 : 5 ANSWER DOWNLOAD EXAMIANS APP
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