MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Faraday's Experiment

For a circula...

Question

For a circular loop of radius $0.02 m$ , the magnetic flux is $0.5 \times 10^{- 2} weber$ . Calculate the strength of the magnetic field around the loop which is perpendicular to the plane of the loop.

A

2 T

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

3 T

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

4 T

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

5 T

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $4 T$
Given: $ϕ = 0.5 \times 10^{- 2} weber, r = 0.02 m$

Since, $ϕ = B A cos θ$ , since $θ = 0^{\circ}$

We get,

$B = \frac{ϕ}{A} = \frac{0.5 \times 10^{- 2}}{π \times (0.02)^{2}}$

$B = 3.98 T \approx 4 T$

So, option (c) is the right answer.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Plane of both loops circle and ellipse are held perpendicularly to the uniform magnetic field of strength B, Compare the magnetic flux passing through both loops if

ϕ_{c}

, the magnetic flux through the circular loop and

ϕ_{E}

, the magnetic flux through the elliptical loop given that area of both loops are same.

Q. A conducting circular loop is placed in a uniform magnetic field

0.04 T

with its plane perpendicular to the magnetic field. The radius of the loop starts shrinking at a uniform rate of

2 mm/s

. The induced emf in the loop, when the radius is

2 cm

Q. There are two metallic loops of radii

0.2 m

0.5 m

. The smaller loop is placed within the bigger one. Calculate the magnitude of the magnetic flux through the bigger loop, if the field is directed into the page of the loop and enclosed by the smaller loop. The strength of the magnetic field is

2.4 T

.

Q. A circular loop of area 0.02 m

^{2}

carrying a current of 10A, is held with its plane perpendicular to a magnetic field induction 0.2 T. The torque acting on the loop is

Q. A conducting circular loop of radius

2.2 c m

is placed in a uniform magnetic field of magnitude

0.04 T

with its plane perpendicular to the magnetic field. The radius of the loop starts shrinking at

2 m m / s

. The induced emf in the loop when the radius is

2 c m

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Electromagnetic Induction and Electric Generators

PHYSICS

Watch in App

explore_more_icon

Explore more

Faraday's Experiment

Standard X Physics

Join BYJU'S Learning Program

CrossIcon