Current Electricity Which of the following materials has the least resistivity ? Copper Zinc Mercury Lead Copper Zinc Mercury Lead ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The electrical energy required to heat a bucket of water to a certain temperature is 4 kWh. If the heat losses are 20 percent, the energy input is 5 kWh 2 kWh 6 kWh 3.2 kWh 5 kWh 2 kWh 6 kWh 3.2 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Sparking occurs when a load is switched off because the circuit has high Inductance Impedance Capacitance Resistance Inductance Impedance Capacitance Resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Temperature coefficient of resistance is expressed in terms of ohms/ohm°C mhos/°C mhos/ohm°C ohms/°C ohms/ohm°C mhos/°C mhos/ohm°C ohms/°C ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Eureka has _______ temperature co-efficient of resistance. Almost zero None of the listed here Negative Positive Almost zero None of the listed here Negative Positive ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ampere-hour is the unit of Power Energy Strength of current Quantity of electricity Power Energy Strength of current Quantity of electricity ANSWER DOWNLOAD EXAMIANS APP
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