Current Electricity What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω? 100 V 200 V 150 V 50 V 100 V 200 V 150 V 50 V 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 1.6 x 10-8 ω-m 1.4 x 10-8 ω-m 1.2 x 10-8 ω-m 1.8 x 10-8 ω-m 1.6 x 10-8 ω-m 1.4 x 10-8 ω-m 1.2 x 10-8 ω-m 1.8 x 10-8 ω-m ANSWER DOWNLOAD EXAMIANS APP
Current Electricity For which of the following 'ampere second' could be the unit? Charge Power Reluctance Energy Charge Power Reluctance Energy ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The filament of electrical bulb is made of Aluminium Steel Tungsten Nickel Aluminium Steel Tungsten Nickel ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of a material always decreases if Number of free electrons available becomes more Temperature of material is increased None of these Temperature of material is decreased Number of free electrons available becomes more Temperature of material is increased None of these Temperature of material is decreased ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Out of the following which is not a poor conductor? Copper Tungsten Carbon Cast iron Copper Tungsten Carbon Cast iron ANSWER DOWNLOAD EXAMIANS APP
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