Resistance is directly proportional to length square
Answers
Answered by
3
The complete question should be is resistance directly proportional to square of length , if not give reasons to support the answer.
No, the resistance of any substance is not directly proportional to the length of square as we know that resistance of any substance is directly proportional to the length of wire and inversely proportional to the cross sectional area of the substance so we have:--
Resistance=XL/A that is R=XL/A
Where X is resistivity of wire unit is ohm/m
And l is length of wire and A is the cross sectional area of wire .
Hence we have resistance of any substance directly proportional to length of wire and not to the square of length of wire.
Answered by
2
Answer:
Step-by-step explanation:
Attachments:
Similar questions