Current Electricity Are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators. Semiconductors Variable resistors Thermistor Varistors Semiconductors Variable resistors Thermistor Varistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following material has nearly zero temperature co-efficient of resistance? Carbon Porcelain Copper Manganin Carbon Porcelain Copper Manganin ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electrical current is due to the flow of Both positive and negative charges Negative charges only Neutral particles only Positive charges only Both positive and negative charges Negative charges only Neutral particles only Positive charges only ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Three resistance of 10 ohms, 15 ohms, and 30 ohm are connected in parallel. The total resistance of the combination is 55 ohms 10 ohms 5 ohms 15 ohms 55 ohms 10 ohms 5 ohms 15 ohms ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The rating of a fuse wire is always expressed in Amperes Ampere-volts kWh Ampere-hours Amperes Ampere-volts kWh Ampere-hours ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Sparking occurs when a load is switched off because the circuit has high Impedance Capacitance Inductance Resistance Impedance Capacitance Inductance Resistance ANSWER DOWNLOAD EXAMIANS APP
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