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Magnetic Effect of Current — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsMagnetic Effect of Current1 Mark
MCQ
A cell is connected between two points of a uniformly thick circular conductor. The magnetic field at the centre of the loop will be (Here $i_1$ and $i_2$ are the currents flowing in the two parts of the circular conductor of radius ‘a’ and $\mu_0$ has the usual meaning)
  • ✓
    Zero
  • B
    $\frac{\mu_0}{2 a}\left(i_1-i_2\right)$
  • C
    $\frac{\mu_0}{2 a}\left(i_1+i_2\right)$
  • D
    $\frac{\mu_0}{ a}\left(i_1+i_2\right)$
✓

Answer

Correct option: A.
Zero
(a) Zero

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