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## Homework Statement

4) The wing of an aircraft is 60m long and the aircraft is travelling at 250ms-1. The vertical component of the Earth’s magnetic field, which the wing is cutting, has the value of 4.3 X 10-5 T.

Calculate:

a. The Flux cut per second by the wing

b. The induced emf set up across the wing

## Homework Equations

This s the equation given:

E = N D Φ /Dt

## The Attempt at a Solution

Heres my attempt. My answers seem very wrong. Please help. Thanks.

a. The Flux cut per second by the wing

Magnetic field = 4.3 X 10-5 T

Length of conductor = 60m

Velocity = 250ms-1

E = Ф ÷ t

E = (4.3 X 10-5 X 60) ÷ 250 = 103 X 10-7 T

b. The induced emf set up across the wing

E = BLV

E = Induced EMF

B =Flux density

V = Velocity

E = 4.3 X 10-5 X 60 X 250 =0.645.

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