TS EAMCET · Physics · Magnetic Properties of Matter
The susceptibility of \(\mathrm{Al}\) is \(2 \times 10^{-5}\). The percent increase in the magnetic field when the space within a current carrying torroid to filled with \(\mathrm{Al}\) is
- A \(2 \times 10^{-2}\)
- B \(2 \times 10^{-3}\)
- C \(2 \times 10^{-4}\)
- D \(2 \times 10^{-5}\)
Answer & Solution
Correct Answer
(B) \(2 \times 10^{-3}\)
Step-by-step Solution
Detailed explanation
By using the net magnetic field in the torroid filled with Al. \(\begin{aligned} & B=\mu(H+I)=\mu H\left(I+\frac{I}{H}\right) \\ & B=\mu H(1+\chi) \\ & B=B_0(1+\chi), \end{aligned}\) \(\left[\because\right.\) where \(x=\) susceptibility of aluminium \(=2 \times 10^{-5}\) ]…
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