Question

a rope of length 11 cm is made in a circular loop what is the radius of the loop​

Answer 1

Step-by-step explanation:

Correct option is

C

0.25

Given: L=1 m and i=3.14A =πA

Radius of the circular loop, r=

2π

L

∴ r=

2π

1

m

Area of the loop, A=πr

2

=π×

4π

2

1

=

4π

1

m

2

Dipole moment, μ=iA

∴ μ=π×

4π

1

=0.25 Am

2

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Answer 2

Answer:

1.75cm

Step-by-step explanation:

Perimeter(p) = 11cm

Radius(r) = ?

We know,

Perimeter = 2πr

or, 11cm = 2*22/7*r

or,44r =11*7

or,r = 77/44

r = 1.75cm

Therefore,

Radius of the circle = 1.75cm