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Magnetic Effect of Current — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsMagnetic Effect of Current1 Mark
MCQ
Current $'i'$ is flowing in the rectangular loop placed in the $xyz$ plane as shown in the figure. Find the magnetic moment of the loop
  • A
    $i(ab)\hat k$
  • B
    $iab(\cos 30\hat i + \sin 30\hat k)$
  • C
    $i\,ab(\sin 30\hat i + \cos 30\hat k)$
  • D
    $i\,ab(\sin 30\hat i + \cos 30\hat j)$
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