𝚃𝚑𝚎 𝚖𝚊𝚐𝚗𝚎𝚝𝚒𝚌 𝚏𝚕𝚞𝚡 𝚘𝚏 500𝚠𝚋 𝚙𝚊𝚜𝚜𝚒𝚗𝚐 𝚝𝚑𝚛𝚘𝚞𝚐𝚑 𝚊200𝚝𝚞𝚛𝚗 𝚌𝚘𝚒𝚕𝚒𝚜 𝚜𝙴𝚍 𝚒𝚗 20×10𝚙𝚘𝚠𝚎𝚛-3 𝚜𝚎𝚌𝚘𝚗𝚍𝚜𝚃𝚑𝚎 𝚊𝚟𝚎𝚛𝚊𝚐𝚎 𝚎. 𝙼. 𝙵 𝚒𝚗𝚍𝚞𝚌𝚎𝚍 𝚒𝚗 𝚝𝚑𝚎 𝚌𝚘𝚒𝚕 𝚒𝚗 𝚟𝚘𝚕𝚝 𝚒𝚜

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AB is a current carrying conductor in the plane of the paper as shown in the figure below. (i) What is the direction of the magnetic field produced by it at point ‘X’? Write the statement of the rule used to find the direction of field lines. (ii) If the polarity of the battery connected to the wire is reversed, how would the direction of the magnetic field be changed? (iii) Point ‘X’ is at a distance r1 and point ‘Y’ is at a distance r2 (r1

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For minimum flux the angle between the magnetic field and normal to the surface is