A current of `0.1 A` circulates around a coil of 100 turns and having a radius equal to `5 cm`. The magnetic field set up at the centre of the coil is

Question

A current of `0.1 A` circulates around a coil of 100 turns and having a radius equal to `5 cm`. The magnetic field set up at the centre of the coil is

A current of `0.1 A` circulates around a coil of 100 turns and having a radius equal to `5 cm`. The magnetic field set up at the centre of the coil is
(`mu_(0)=4pixx10^(-7)` weber/amper-metre)
A. `5pixx10^(-5)T`
B. `8pixx10^(-5)T`
C. `4pixx10^(-5)T`
D. `4pixx10^(-5)T`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

A circular coil of wire consisting of 100 turns each of radius 9 cm carries a current of 0.4 A. The magnitude of the magnetic field at the centre of c

2 Answers 5 Views

A circular coil of radius 10 cm having 100 turns carries a current of 3.2 A. The magnetic field at the center of the coil is

2 Answers 4 Views

A circular coil of 25 turns and radius 12 cm is placed in a uniform magnetic field of 0.5 T normal to the plane of the coil. If the current in the coi

2 Answers 5 Views

A coil of area `0.4m^(2)` has 100 turns. A magnetic field of 0.04 Wb `m^(-2)` is acting normal to the coil surface. If this magnetic field is reduced

2 Answers 5 Views

The magnetic field at the centre of a circular current carrying coil of radius r is `B^(e )`. The magnetic on its axis at a distance r from the centre

2 Answers 4 Views

A circular coil of radius 4 cm having 20 turns carries a current of 3A.It is a magnetic field of intensity 0.5 `Wb//m^(2)`.The magnetic dipole moment

2 Answers 4 Views

A current of 3A, in one coil, causes a flux in the second coil of 2000 turns to change by `6xx10^(-4)Wb` per turns of the secondary coil. The mutual i

2 Answers 7 Views

The magnetic field in a coil of 100 turns and 40 square cm area is increased from 1 Tesla to 6 Tesla in 2 second. The magnetic field is perpendicular

2 Answers 4 Views

A large coil of 10 turns has a resistance 2 `Omega`. It is kept in a magnetic field of 0.5 T. if the coil is pulled out of the magnetic field uniforml

2 Answers 4 Views

A coil having an area of 0.4 `m^(2)` and 100 turns is kept perpendicular to a uniform magnetic field of induction of 0.5 `Wb//m^(2)`. The coil is rota

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
Magnetic field at the centre of circular coil of N turns is given by
`B=(mu_(0)Ni)/(2r)=(4xx10^(-7)xx100xx0.1)/(2xx5xx10^(-2))=4pxx10^(-6)T`

4 views Answered 2023-02-05 15:29