Current Electricity A thermistor has Positive temperature coefficient Zero temperature coefficient Negative temperature coefficient Variable temperature coefficient Positive temperature coefficient Zero temperature coefficient Negative temperature coefficient Variable temperature coefficient ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Insulators have _______ temperature co-efficient of resistance. Zero Positive None of the listed here Negative Zero Positive None of the listed here Negative ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A copper wire has a resistance of 10 Ω. It is stretched by one-tenth of its original length. Then its resistance will be 12.1 Ω 11 Ω 9 Ω 10 Ω 12.1 Ω 11 Ω 9 Ω 10 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes 0.8 ohm 0.4 ohm 1.0 ohm 0.6 ohm 0.8 ohm 0.4 ohm 1.0 ohm 0.6 ohm ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An open resistor, when checked with an ohmmeter reads Low but not zero Zero Infinite High but within tolerance Low but not zero Zero Infinite High but within tolerance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of a material always decreases if Temperature of material is increased Number of free electrons available becomes more Temperature of material is decreased None of these Temperature of material is increased Number of free electrons available becomes more Temperature of material is decreased None of these ANSWER DOWNLOAD EXAMIANS APP
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