MHT CET · Physics · Magnetic Effects of Current
When a battery is connected to the two ends of a diagonal of a square conductor frame of side ' \(a\) ', the magnitude of magnetic field at the center will be ( \(\mu_0=\) permeability of free space)
- A \(\frac{\mu_0}{\sqrt{2} \pi \mathrm{a}}\)
- B \(\frac{\sqrt{2} \mu_0}{\pi \mathrm{a}}\)
- C \(\frac{\mu_0}{\pi \mathrm{a}}\)
- D Zero
Answer & Solution
Correct Answer
(D) Zero
Step-by-step Solution
Detailed explanation
As shown in the figure, the currents in the parallel sides will produce equal and opposite fields at the center and hence the net magnetic fields at the center will be zero.
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