Current Electricity Insulators have _______ temperature co-efficient of resistance. Positive None of the listed here Negative Zero Positive None of the listed here Negative Zero ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of a tungsten lamp _____ as applied voltage increases. None of the listed here Remains same Decreases Increases None of the listed here Remains same Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a few meters of wire conductor in closed electrical circuit is Practically zero Very high Low High Practically zero Very high Low High ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The rating of a fuse wire is always expressed in Ampere-hours kWh Ampere-volts Amperes Ampere-hours kWh Ampere-volts Amperes ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An electric filament bulb can be worked from Battery supply only All of the listed here AC supply only DC supply only Battery supply only All of the listed here AC supply only DC supply only 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 1.8 x 10-8 ω-m 1.4 x 10-8 ω-m 1.2 x 10-8 ω-m 1.6 x 10-8 ω-m 1.8 x 10-8 ω-m 1.4 x 10-8 ω-m 1.2 x 10-8 ω-m ANSWER DOWNLOAD EXAMIANS APP
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