A boat is moving due East in a region, where the earth's magnetic field is `5 xx 10^(-5)` N/A-m due North and horizontal. The boat carries a vertical aerial 2 m long. If the speed of the boat is `1.5 ms^(-1)` find the magnitude of the induced emf in the wire of the aerial.

Explanation

Here,
Magnetic field, `B=5xx10^(-5)N//A-m`
Speed of boat, v = 1.5 m/s
Length of vertical aerial, l =2m
Emf induced, `epsilon =vBl = 1.5xx(5xx10^(-5))xx2`
`= 1.5 xx 10^(-4)V`