Current Electricity SI unit of power is Watt Coulomb Watt-hour Henry Watt Coulomb Watt-hour Henry ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Conductivity is the reciprocal of Resistivity Current density None of the listed here Resistance Resistivity Current density None of the listed here Resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 25 : 4 5 : 2 2 : 5 4 : 25 25 : 4 5 : 2 2 : 5 4 : 25 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity With rise in temperature the resistance of pure metals First increases and then decreases Remains constant Increases Decreases First increases and then decreases Remains constant Increases Decreases 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 10 Ω 11 Ω 9 Ω 12.1 Ω 10 Ω 11 Ω 9 Ω 12.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following materials has the least resistivity ? Mercury Zinc Copper Lead Mercury Zinc Copper Lead ANSWER DOWNLOAD EXAMIANS APP
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