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 Which of the following material has nearly zero temperature co-efficient of resistance? Carbon Manganin Copper Porcelain Carbon Manganin Copper Porcelain ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a lamp load when more than one lamp are switched on the total resistance of the load None of these Increases Remains same Decreases None of these Increases Remains same Decreases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of a material always decreases if None of these Number of free electrons available becomes more Temperature of material is decreased Temperature of material is increased None of these Number of free electrons available becomes more Temperature of material is decreased Temperature of material is increased ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a series circuit with unequal resistances The highest resistance has the highest voltage drop The lowest resistance has the highest voltage drop The highest resistance has the most of the current through it The lowest resistance has the highest current The highest resistance has the highest voltage drop The lowest resistance has the highest voltage drop The highest resistance has the most of the current through it The lowest resistance has the highest current ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An open resistor, when checked with an ohmmeter reads Low but not zero Infinite High but within tolerance Zero Low but not zero Infinite High but within tolerance Zero ANSWER DOWNLOAD EXAMIANS APP
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