Which magnetic field is similar to that of a bar magnet?

Important Questions on Magnetic Effects of Current and Magnetism

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 14

In a coaxial straight cable, the central conductor and the outer conductor carry equal currents in opposite directions. The magnetic field is zero

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JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 15

A current $I$ flows along the length of an infinitely long, straight, thin-walled pipe. Then,

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 16

A very high magnetic field is applied to a stationary charge. Then the charge experiences:

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JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 17

Select the correct statement for a charged particle moving through a magnetic field perpendicular to its direction.

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 18

A charged particle moves along a circle under the action of possible constant electric and magnetic fields. Which of the following are possible?

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 19

Two protons whose velocities are in the ratios $4:1$ move perpendicular to a uniform magnetic field. The ratio of the radii of their paths will be,

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 20

If electron velocity is $\left(2 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}\right)$ and it is subjected to a magnetic field $4 \hat{\mathrm{k}},$ then

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 21

An electron of mass $9.0\times {10}^{-31}\mathrm{ }\mathrm{kg}$ under the action of a magnetic field moves in a circle of radius $2 \mathrm{cm}$ at a speed of $3\times {10}^6 \mathrm{m} {\mathrm{s}}^{-1}$. If a proton of mass $1.8\times {10}^{-27}\mathrm{ }\mathrm{kg}$ has to move in a circle of same radius and in the same magnetic field, then its speed must be