A wire `KMN` moves along the bisector of the angle `theta` with a constant velocity `v` in a uniform magnetic field `B` perpendicular to the plane of the paper and directed inward. Which of the following is correct? A. Effective length of the wire is `2L "sin" theta/2`B. `E.m.f` induced between `K` and `N` is `2BLV "sin"(theta)/(2)`C. The shape of `KMN` is immaterial, only the end points `K N` are important.D. All the above

A wire `KMN` moves along the bisector of the angle `theta` with a cons

1.	A wire `KMN` moves along the bisector of the angle `theta` with a constant velocity `v` in a uniform magnetic field `B` perpendicular to the plane of the paper and directed inward. Which of the following is correct? A. Effective length of the wire is `2L "sin" theta/2`B. `E.m.f` induced between `K` and `N` is `2BLV "sin"(theta)/(2)`C. The shape of `KMN` is immaterial, only the end points `K N` are important.D. All the above
Answer» `e = B l_("eff")v , l_("eff") = 2(l sin^(theta)//_(2))`

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