CameraIcon

SearchIcon

MyQuestionIcon

1

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

Electric Generator

Flux associat...

Question

Flux associated with coil of unit area placed int he magnetic field of induction $B$ is doubled in $0.2 s$ . The emf induced in the coil is:

A

5 V

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

B

10 B V

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

C

5 B V

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

D

10 V

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

Open in App

Solution

The correct option is A $5 V$
Flux associated with coil of unit area placed in the magnetic field of induction B
Using Faraday's law
$E M F = N \frac{d ϕ}{d t} = \frac{1}{0.2} E M F = \frac{10}{2} = 5 V$

Suggest Corrections

thumbs-up

0

Similar questions

Q. When the magnetic flux associated with a coil changes an emf is induced in the circuit. State Faraday's law of electromagnetic induction.

Q. A rectangular copper coil is placed in uniform magnetic field of induction

40 m T

with its plane perpendicular to the field. The area of the coil is shrinking at a constant rate of

0.5 m^{2} s^{- 1}

.The emf induced in the coil is :

1000

500

c m^{2}

as it's area. The plane of the coil is placed at right angles to a magnetic induction field of

2 \times 10^{- 5} w e b / m^{2}

. The coil is rotated through

180^{o}

0.2

seconds. The average emf induced in the coil (in milli volts) is

Q. A rectangular coil of wire is placed in a uniform magnetic field such that the plane of the coil is parallel to the magnetic field. The magnetic flux linked with the coil and the emf induced are respectively:

Q. A flat coil of radius 0.7cm has 100 loops. It is placed in a magnetic field of induction 0.3T so that flux passes through it. It is rotated such that maximum flux passes through it again in 0.02s. Then induced emf in the coil is

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Electric Generator

PHYSICS

Watch in App

explore_more_icon

Explore more

Electric Generator

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon