Question

In a circuit diagram, two resistance wire A and B are of same area of cross-section and same material connected in parallel to each other.Wire A is longer than wire B. Two ammeters A1 and A2 are also attatched ,one with resistance wire A and one with resistance wire B. Which ammeter indicate higher reading for current? Give reason. pls answer with full explanation have to submit for class 10th assesment

Answer 1

Answer:

Wire A  will provide more resistance as compared to Wire B as being longer than Wire A the free electrons will collide with more no. of atoms than in the small wire. Therefore, the ammeter connected with Wire B (A2) will show higher reading as more current will flow through it than Wire A.

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Explanation: