AP EAMCET · PHYSICS · Magnetic Effects of Current
A magnet suspended in a uniform magnetic field is heated so as to reduce its magnetic moment by \(19 \%\), By doing this, the time period of the magnet approximately
- A Increases by \(11 \%\)
- B Decreases by \(19 \%\)
- C Increases by \(19 \%\)
- D Decreases by \(4 \%\)
Answer & Solution
Correct Answer
(A) Increases by \(11 \%\)
Step-by-step Solution
Detailed explanation
Time period of suspended magnet in uniform magnetic field is \(\mathrm{T}_1=2 \pi \sqrt{\frac{\mathrm{I}}{\mathrm{MB}}}\) When the magnetic moment is reduced by \(19 \%\), then…
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