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

Byju's Answer

Standard XII

Physics

Motional EMF in an Open Conductor

A conducting ...

Question

A conducting rod is moving in uniform field of $4 \times 10^{2}$ Tesla; speed of the rod is 6 m/s. Find the emf induced in the rod.

72 volt

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

96 volt

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

312 volt

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

288 volt

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

Open in App

Solution

The correct option is D 288 volt
emf = B V L, where 'L' is the dimension of the rod which is perpendicular to both the field and the velocity.
Threfore, L = 12 cm.
emf $= 4 \times 10^{2} \times 6 \times L$
$= 4 \times 10^{2} \times 6 \times 12 \times 10^{- 2}$
= 288 V

Suggest Corrections

Similar questions

Q. A conducting rod is moving in uniform field of

4 \times 10^{2}

Tesla; speed of the rod is 6 m/s. Find the emf induced in the rod.

A conducting rod $P Q$ of length 5m oriented as shown in figure is moving with velocity (2 m/s) $^i$ without rotation in a uniform magnetic field $(3^j + 4^k)$ Tesla. The emf induced in the rod is

Q. A conducting rod

P Q

of length

5 m

oriented as shown in the figure is moving with velocity

(2^i) m/s

, without rotation, in a uniform magnetic field of

(3^j + 4^k) T

. EMF induced in the rod is -

Q. A straight conducting rod of length

2 m

is moved with a speed of

2 m/s

in a uniform magnetic field of magnitude

10 T .

The maximum induced emf across the ends of the rod can be

[

0.77 Mark

]

Q. A rod of length

10 c m

made up of conducting and non-conducting material (shaded part is non-conducting). The rod is rotated with constant angular velocity

10 r a d / s e c

about point

O

, in constant and uniform magnetic field of

2

Tesla as shown in figure. The induced emf between the point

A

and point

B

of rod will be

Join BYJU'S Learning Program

A conducting rod is moving in uniform field of 4×102 Tesla; speed of the rod is 6 m/s. Find the emf induced in the rod.

The correct option is D 288 voltemf = B V L, where 'L' is the dimension of the rod which is perpendicular to both the field and the velocity. Threfore, L = 12 cm. emf =4×102×6×L =4×102×6×12×10−2 = 288 V

A conducting rod is moving in uniform field of $4 \times 10^{2}$ Tesla; speed of the rod is 6 m/s. Find the emf induced in the rod.

The correct option is D 288 volt
emf = B V L, where 'L' is the dimension of the rod which is perpendicular to both the field and the velocity.
Threfore, L = 12 cm.
emf $= 4 \times 10^{2} \times 6 \times L$
$= 4 \times 10^{2} \times 6 \times 12 \times 10^{- 2}$
= 288 V