Physics, asked by hoqueaniqul144, 6 months ago

The magnetic field of a small current loop at a large distance r from
the loop along its axis varies as ....​

Answers

Answered by ayansalmani991
0

Explanation:

12th

Physics

Moving Charges and Magnetism

Magnetic Field on the Axis of a Circular Current Loop

The magnetic field at a dis...

PHYSICS

The magnetic field at a distance x on the axis of a circular coil of radius R is

8

1

th of that at the centre.The value of x is

MEDIUM

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ANSWER

From above formula magnetic field at center z=0

B=

2R

μ

Ni

....(i)

Given magnetic field B

at distance Z from center is

8

B

B

=

8

1

2R

μ

Ni

....(ii)

From above concept B

=

2((R

2

+Z

2

)

2

3

μ

NiR

2

....(iv)

From equation (ii) and (iv)

2((R

2

+Z

2

)

2

3

μ

NiR

2

=

8

1

2R

μ

Ni

8R

3

=(R

2

+Z

2

)

2

3

taking cube root on both sides

2R=

R

2

+Z

2

⇒Z=

3

R

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