Current Electricity If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes 0.4 ohm 0.6 ohm 0.8 ohm 1.0 ohm 0.4 ohm 0.6 ohm 0.8 ohm 1.0 ohm ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators. Variable resistors Semiconductors Varistors Thermistor Variable resistors Semiconductors Varistors Thermistor 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 Rl Ri None of them Either Rl or Ri Rl Ri None of them Either Rl or Ri ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A rheostat differs from potentiometer in the respect that it Has higher wattage rating Offers large number of tapping Has lower wattage rating Has large number of turns Has higher wattage rating Offers large number of tapping Has lower wattage rating Has large number of turns ANSWER DOWNLOAD EXAMIANS APP
Current Electricity One Newton meter is same as One joule Five joules One joule second One watt One joule Five joules One joule second One watt ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The weight of an aluminium conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is 1 1.5 0.5 0.6 1 1.5 0.5 0.6 ANSWER DOWNLOAD EXAMIANS APP
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