Current Electricity In the case of direct current Magnitude of current changes with time Magnitude of current remains constant Magnitude and direction of current changes with time Magnitude and direction of current remains constant Magnitude of current changes with time Magnitude of current remains constant Magnitude and direction of current changes with time Magnitude and direction of current remains constant ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An electrical lamp coonsumes 100 W of power. If the supply voltage is 220 V the energy consumed in 30 minutes is 5 kWh 5 kWh 0.05 kWh 0.005 kWh 5 kWh 5 kWh 0.05 kWh 0.005 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following materials has the least resistivity ? Lead Mercury Copper Zinc Lead Mercury Copper Zinc ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of 220 V, 100 W lamp will be 48.4 Q 484 ft 4.84 Q 4840 Q 48.4 Q 484 ft 4.84 Q 4840 Q ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following is the best material for making connecting wires? Manganin Constant Nichrome Copper Manganin Constant Nichrome Copper 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 3.2 kWh 5 kWh 2 kWh 6 kWh 3.2 kWh 5 kWh 2 kWh 6 kWh ANSWER DOWNLOAD EXAMIANS APP
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