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By how many times does the resistance of the resistor increaase when ONLY THE LENGTH IS DOUBLED? I asked my teacher and he said 4 times but the answer key if last year's papers say its two times. Please help :)

Posted by Shruti Gupta 5 years, 10 months ago

CBSE > Class 10 > Science

7 answers

Ajay ???? 5 years, 10 months ago

Doubled

1Thank You

Diksha ? 5 years, 10 months ago

Hope it helps...

2Thank You

Diksha ? 5 years, 10 months ago

If only the lenght is doubled without changing the thickness then R becomes 2 times but if along with the doubling of lenght ,the thickness is halved then R becomes 4 times?

2Thank You

Vishal Kaushik 5 years, 10 months ago

If area is also halved then it will increase 4 times

1Thank You

Chandni Viswanath 5 years, 10 months ago

R is directly proportional to resistivity& length and inversely proportional to area. Here, area and resitivity are constant. So when length is doubled, resitance also gets doubled

1Thank You

Aadya Singh 5 years, 10 months ago

Doubled*

2Thank You

Aadya Singh 5 years, 10 months ago

If the only length is doubles, then the resistance will become 2 times..

3Thank You

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Posted by Pandey Ji 6 months, 1 week ago

CBSE > Class 10 > Science