At a place the horizontal component of earth's magnetic field is 3 \times 10^{-5} {\T} and the magnetic declination is 30^{\circ}. A compass needle of magnetic moment 18 {\Am}^2 pointing towards geographic north at this place experiences a torque of [AP EAPCET 21 May 2024 Shift 2]

Correct Answer is : 27×10−5Nm

Magnetism and Matter

Section: Physics

Question : 8 of 13

Marks: +1, -0

At a place the horizontal component of earth's magnetic field is 3×10−5T and the magnetic declination is 30∘. A compass needle of magnetic moment 18Am2 pointing towards geographic north at this place experiences a torque of

[AP EAPCET 21 May 2024 Shift 2]

‌36×10−5‌Nm
‌18×10−5‌Nm
‌54×10−5‌Nm
‌27×10−5‌Nm

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