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NEET 2008

Exam: NEET
Year: 2008
Subject: Physics
Chapter: Magnetic Effects of Current

NEET 2008 · Physics · Magnetic Effects of Current

A particle mass m , charge Q and kinetic energy T enters a...

A particle mass

m

, charge

Q

and kinetic energy

T

enters a transverse uniform magnetic field of induction

\overrightarrow{\mathbf{B}}

. After 3 s the kinetic energy of the particle will be

Options

A $3 T$
B $2 T$
C $T$
D $4 T$

Correct answer

C. $T$

Step-by-step solution

After passing through a magnetic field, the magnitude of its mass and velocity of the particle remain same, so its energy does not change, ie., kinetic energy will remain

T

.

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