To find polarity of emf induced in the rod due to EMI we use

What will be the magnitude and polarity of induced emf across the rod, if it is rotating about an axis at a distance (L)/(4) from one of its ends.

A rod of length l is placed perpendicular to a long wire carrying current i . The rod is moved parallel to the wire with a velocity v . Find the emf induced in the rod, if its nearest end is at a distance a from the wire.

A rod of length l is placed perpendicular to a long wire carrying current i . The rod is moved parallel to the wire with a velocity v . Find the emf induced in the rod, if its nearest end is at a distance a from the wire.

A conducting rod OA of length l is rotated about its end O with an angular velocity omega in a uniform magnetic field directed perpendicualr to the rotation. Find the emf induced in the rod, between it's ends.

Find the emf induced in the rod in the following cases.The figures are self explanatory.

A rod of length l is rotating with an angular speed omega about one of its ends which is at a distance a from an infinitely lonf wire carrying current i . Find the emf induced in the rod at the instant shown in .

A rod of length l is rotating with an angular speed omega about one of its ends which is at a distance a from an infinitely long wire carrying current i . Find the emf induced in the rod at the instant shown in .

A rod of length l is rotating with an angular speed omega about its one end which is at a distance a from an infinitely long wire carrying current i .Find the emf induced in the rod at the instant shown in the figure.

In the figure shown a long conductor carries constant current I . A rod PQ of length l is in the plane of the rod.The rod is rotated about point P with constant angular velocity omega as shown in the figure.Find the e.m.f induced in the rod in the position shown.Indicate which points is at high potential.

(a) Draw a labelled diagrame of an ac generator. Obtain the expression for the emf induced in the rotating coil of N turns each of cross-sectional are A, in the presence of a magnetic field overset(to) (B) . (b) A horizonatal conducting rod 10m long extending from east to west is falling with a speed 5.0 ms ^(-1) at right angles to the horizontal component of the Earth's magnetic fields. 0.3 xx 10^(-4) Wb m^(-2) . Find the instantaneous value of the emf induced in the rod .