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GUJCET · Physics · Magnetism And Matter
A closely wound solenoid of 800 turns and area of cross section \(2.5 \times 10^{-4} \mathrm{~m}^2\) carries a current of 3.0A. The magnetic moment associated with it is ___________.
- A \(60 \mathrm{JT}^{-1}\)
- B \(0.60 \mathrm{JT}^{-1}\)
- C \(6 \mathrm{JT}^{-1}\)
- D \(0.06 \mathrm{JT}^{-1}\)
Answer & Solution
Correct Answer
(B) \(0.60 \mathrm{JT}^{-1}\)
Step-by-step Solution
Detailed explanation
\(M = NIA\) \(M = 800 \times 3.0 \mathrm{~A} \times 2.5 \times 10^{-4} \mathrm{~m}^2\)
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