A circular disc of radius \( 0.2 \mathrm{~m} \) is placed in a uniform magnetic field of inducti...

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A circular disc of radius \( 0.2 \mathrm{~m} \) is placed in a uniform magnetic field of induction \( \frac{1}{\pi}\left(\frac{W b}{m^{2}}\right) \) in such a way
\( \mathrm{P} \)
W
that its axis makes an angle of \( 60^{\circ} \) with \( B \). The magnetic flux linked with the disc is
(1) \( 0.02 \mathrm{~Wb} \)
(2) \( 0.06 \mathrm{~Wb} \)
(3) \( 0.08 \mathrm{~Wb} \)
(4) \( 0.01 \mathrm{~Wb} \)
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