Current Electricity: JEE Main 2022 Physics question

JEE Main 2022 · 25 Jul, Morning shift · Q54

JEE Main 202225 Jul, Morning shiftPhysicsMediumCurrent Electricity150× since 2002

Eight copper wire of length

l

and diameter

d

are joined in parallel to form a single composite conductor of resistance

R

. If a single copper wire of length

2 l

have the same resistance

(R)

then its diameter will be ____________ d.

Your answerType your answer. Integers and decimals are accepted.

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