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NEET UG PHYSICS MCQ: MAGNETIC EFFECT OF CURRENT

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The mass of a proton is 1847 times that of an electron. An
electron and a proton are injected into a uniform electric field at
right angle to the direction of the field with the same initial K.E.

View answer and explanation

Correct option: D

Both the trajectories will be equally curved

Option D (A helix with increasing pitch) is correct because the magnetic field causes helical motion, while the electric field accelerates the particle along the field direction, increasing the pitch.

More Questions from MAGNETIC EFFECT OF CURRENT

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Which of the following statements is not true A current loop in a magnetic field Given below are two statements:
Statement (I): When currents vary with time, Newton’s third law is valid only if momentum carried by the electromagnetic field is taken into account.
Statement (II): Ampere's circuital law does not depend on Biot-Savart’s law.
In the light of the above statements, choose the correct answer from the options given below: The magnetic field due to current carrying a circular loop of radius

5 \mathrm{~cm}

at a point on the axis at a distance of

12 \mathrm{~cm}

from the center is

250 \mu \mathrm{T}

. The magnetic field at the center of the loop is The magnetic field

d \vec{B}

due to a small current element

d \vec{l}

\vec{r}

and element carrying current

i

is Three long straight conductors carry currents 4A, 2A and 3A into the plane of paper. A circular path is imagined to be enclosing these currents. The value of

\oint {\overrightarrow B .\overrightarrow {dl} }