AP EAMCET · PHYSICS · Magnetic Effects of Current
A rectangular loop is provided with sliding connector of length \(1 \mathrm{~m}\) and resistance \(2 \Omega\). It is placed in a uniform magnetic field of \(2 \mathrm{~T}\) perpendicular to the plane of the loop. The external force required to keep the connector moving with uniform velocity \(2 \mathrm{~ms}^{-1}\) is
- A \(6 \mathrm{~N}\)
- B \(4 \mathrm{~N}\)
- C \(2 \mathrm{~N}\)
- D \(1 \mathrm{~N}\)
Answer & Solution
Correct Answer
(B) \(4 \mathrm{~N}\)
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