a cylindrical conductor of length l and uniform area of cross section A has resistance R. Another conductor of length 2.5 l and resistance 0.5 R of the same material has area of cross section.
A - 5A
B - 2.5A
C - 0.5A
D - 1/5A
Answers
Answered by
3
Answer:
mine ans. was 5A
Explanation:
i m not sure
hope it was right!!!!!!!
Answered by
0
Answer:
A - 5A
Explanation:
R= 0.5
L =2.5, A = ?
R = p. L \ A
0.5 = p. 2.5 / A
A = p.2.5 / 0.5
A = p. 5
here p is resistivity
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