Question

Consider a conducting rod of length 34 cm moving along a pair of rails, and a magnetic field pointing perpendicular to the plane of the rails.

Required:
At what speed (in m/s) must the sliding rod move to produce an emf of 0.75V in a 1.75T field?

Answer 1

The speed is
`v= 1.26 \ m/s`

Step-by-step explanation:

From the question we are told that

The length of the rod is
`l = 34 \ cm = 0.34 \ m`

The induced emf is
`\epsilon = 0.75\ V`

The magnetic field is
`B = 1.75 \ T`

Generally the speed is mathematically represented as

`v = (\epsilon )/(Bl )`

=>
`v = ( 0.75 )/(1.75 * 0.34 )`

=>
`v= 1.26 \ m/s`