The pole strength of a bar magnet is \( 48 \mathrm{Am} \) and the distance between its poles is ...
The pole strength of a bar magnet is \( 48 \mathrm{Am} \) and the distance between its poles is \( 25 \mathrm{~cm} \). The moment of the couple by which it can be placed at an angle of \( 30^{\circ} \) with the uniform magnetic intensity of flux density \( 0.15 \) N/A-m will be (A) \( 12 \mathrm{Nm} \) (B) \( 18 \mathrm{Nm} \) (C) \( 0.9 \mathrm{Nm} \) (D) None of these 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live
