A nichrome wire and a copper wire of the same length and area of cross-section are connected one at a time in a circuit with fixed voltage. The currents will be:
Question
A nichrome wire and a copper wire of the same length and area of cross-section are connected one at a time in a circuit with fixed voltage. The currents will be:
Exactly equal because dimensions are the same
Different, because resistivity of the materials differs
Zero for both
Infinite for both
Answer
Different, because resistivity of the materials differs
Detailed Explanation
Even with identical dimensions, different materials have different resistivities, resulting in different resistances and hence different currents.