Which of the following does not hold for magnetic field lines?

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 13

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

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

EASY

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:

EASY

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