Current Electricity Ohm's law is not applicable to Semi-conductors High currents Small resistors Dc circuits Semi-conductors High currents Small resistors Dc circuits 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 9 Ω 11 Ω 12.1 Ω 10 Ω 9 Ω 11 Ω 12.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 5 : 2 2 : 5 25 : 4 4 : 25 5 : 2 2 : 5 25 : 4 4 : 25 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a straight conductor is independent of Cross-sectional area Shape of cross-section Material Temperature Cross-sectional area Shape of cross-section Material Temperature ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Conductivity is the reciprocal of Resistance None of the listed here Current density Resistivity Resistance None of the listed here Current density Resistivity ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In which of the following substances the resistance decreases with increase in temperature? Silver Copper Constantan Carbon Silver Copper Constantan Carbon ANSWER DOWNLOAD EXAMIANS APP
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