Current Electricity Are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators. Varistors Semiconductors Variable resistors Thermistor Varistors Semiconductors Variable resistors Thermistor 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 Resistance of a carbon filament lamp _______ as the applied voltage increases. Remains same None of the listed here Decreases Increases Remains same None of the listed here Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be 3 times 1/9 times 1/3 times 9 times 3 times 1/9 times 1/3 times 9 times ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two resistances Rl and Ri are connected in series across the voltage source where Rl > Ri. The largest drop will be across None of them Either Rl or Ri Ri Rl None of them Either Rl or Ri Ri Rl ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ampere-hour is the unit of Power Quantity of electricity Energy Strength of current Power Quantity of electricity Energy Strength of current ANSWER DOWNLOAD EXAMIANS APP
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