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Fleming's Right Hand Rule

A frame CDEF ...

Question

A frame CDEF is placed in a region where a magnetic field B is present. A rod of length 1 metre moves with constant velocity 20m/s and strength of magnetic field is 1 T. The power spent in the process is ( take R=0.2 ohm all othet wires and rod have 0 resistance.)

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C D E F

is laced in a region where a magnetic field

\to B

is present. A rod of length one metre moves with constant velocity

20 m / s

and strength of magnitude field is one tesia. The power spent in the process is (take

R = 0.2 Ω

and all other wires and rod have zero resistance)

CDEF

is placed in a region where a magnetic field

\to B

is into the plane of the loop. A rod of length

1 m

moves with constant velocity

20 {ms}^{- 1}

and strength of magnetic field is

1 T

. The power delivered in the process is-

[The value of

R = 0.2 Ω

and other parts have negligible resistance]

P Q

1 m

is placed on the frame

C D E F

. This setup is placed in a space where a uniform magnetic field

\to B

1 T

exist. The rod moves with a constant velocity of

20 m/s

. The power spent by external force to keep the rod moving with constant velocity is -

Given,

R = 0.2 Ω

and all other wires and rod have zero resistance.

PQRS

is placed in a region where magnetic field

B

is present, as shown in the figure. A rod of length

2 m

moves with a constant velocity

25 m/s

and the strength of the magnetic field inside the plane of paper is

0.1 T

. If the resistance of the rod is

10 Ω

and the resistance of the frame is negligible, then calculate the power spent in this process

Q. A conducting rod of length

l

is moving in a transverse magnetic field of strength

B

v

. The resistance of the rod is

R

. The current in the rod is

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