Statement I The flux can be altered by changing the shape of a coil in a magnetic field or rotating coil in a magnetic field such that the angle θ between B and A changes. Statement II By changing the shape of a coil or the angle θ between B and A, an emf is induced in the coil.

Question

Statement I The flux can be altered by changing the shape of a coil in a magnetic field or rotating coil in a magnetic field such that the angle θ between B and A changes. Statement II By changing the shape of a coil or the angle θ between B and A, an emf is induced in the coil. (A) Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I. (B) Both Statement I and Statement II are correct but Statement II is not the correct explanation of Statement I. (C) Statement I is correct but Statement II is incorrect. (D) Statement I is incorrect but Statement II is correct.

Tardigrade Admin · Accepted Answer

If B=0, then φ=B ⋅ A=0. If φ=0, then φ=B ⋅ A=0 . B may or may not be zero because angle between B and A may be 90° . B A cos θ=0 for θ=90°.

Q. Statement I The flux can be altered by changing the shape of a coil in a magnetic field or rotating coil in a magnetic field such that the angle $θ$ between $B$ and $A$ changes.
Statement II By changing the shape of a coil or the angle $θ$ between $B$ and $A$ , an emf is induced in the coil.

Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I.

Both Statement I and Statement II are correct but Statement II is not the correct explanation of Statement I.

Statement I is correct but Statement II is incorrect.

Statement I is incorrect but Statement II is correct.

If $B = 0$ , then $ϕ = B \cdot A = 0$ .
If $ϕ = 0$ , then $ϕ = B \cdot A = 0. B$ may or may not be zero because angle between $B$ and $A$ may be $9 0^{\circ} . B A cos θ = 0$ for $θ = 9 0^{\circ}$ .

Q. Statement I The flux can be altered by changing the shape of a coil in a magnetic field or rotating coil in a magnetic field such that the angle θ between B and A changes. Statement II By changing the shape of a coil or the angle θ between B and A, an emf is induced in the coil.