A 10 cm long wire lies along y-axis. It carries a current of 1.0 A in positive…
Physics · Class 12 · CBSE — Moving Charges and Magnetism
A 10 cm long wire lies along y-axis. It carries a current of 1.0 A in positive y-direction. A magnetic field \(\vec{B}=(5 \mathrm{mT}) \hat{j}-(8 \mathrm{mT}) \hat{k}\) exists in the region. The force on the wire is:
- \((0.8 \mathrm{mN}) \hat{\mathrm{i}}\)
- \(-(0.8 \mathrm{mN}) \hat{\mathrm{i}}\)
- \((80 \mathrm{mN}) \hat{\mathrm{i}}\)
- \(-(80 \mathrm{mN}) \hat{\mathrm{i}}\)
Answer
(B) -(0.8 mN ) i
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