Question

the side of a square ia 22 cm ,find its ?
a)daigonal
b) area
​

Answer 1

Answer:

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Answer 2

ANSWER

L=22cm=0.22m ,t=0.4s ,Area of square A

s

=L

2

=(0.22)

2

=0.0484,B=0.2T ,θ=90°

Area of circle A

c

=πr

2

=π(

2π

L

)

2

=0.00385m

2

Rate of change of magnetic field :

ε=

Δt

Δϕ

B

=

Δt

BΔAcosθ

=

0.4

0.2×[0.00385−0.0484]

≈−6.6mm