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Important Questions: Force on a moving charge in uniform magnetic and electric fields for JEE

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The most important Force on a moving charge in uniform magnetic and electric fields questions for JEE cover conceptual traps, standard results, and numerical patterns from Force on a moving charge in uniform magnetic and electric fields. Goodmarks provides 25+ high-yield MCQs with full solutions.

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Part of Magnetic Effects of Current and Magnetism in JEE Main Physics.

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Q1PhysicsUnit 13: Magnetic Effects of Current and Magnetism

Assertion If a charged particle enters from outside at right angles in uniform magnetic field.The maximum time spent in magnetic field may be

\frac{\pi m}{B q}

Reason It can complete only semi-circle in the magnetic field.

Q2PhysicsUnit 13: Magnetic Effects of Current and Magnetism

Which of the following phenomenon can be related to electric current

Q3PhysicsUnit 13: Magnetic Effects of Current and Magnetism

In a cathode ray oscillograph, the focusing of beam on the screen is achieved by

Q4PhysicsUnit 13: Magnetic Effects of Current and Magnetism

A charged particle moving at right angles to a uniform magnetic field:

Q5PhysicsUnit 13: Magnetic Effects of Current and Magnetism

Under what condition the force acting on charge particle moving in the magnetic field minimum?

Q6PhysicsUnit 13: Magnetic Effects of Current and Magnetism

A charged particle is projected in a plane perpendicular to uniform magnetic field. The areal velocity (area swept per unit time) of the particle is : This question has multiple correct options

Q7PhysicsUnit 13: Magnetic Effects of Current and Magnetism

An electron moves at right angle to a magnetic field of

1.5 \times 10^{-2} T

with a speed of

6 \times 10^{7} m / s .

If the specific charge on the electron is

1.7 \times

10^{11} C / k g,

the radius of the circular path will be

Q8PhysicsUnit 13: Magnetic Effects of Current and Magnetism

In a region, steady and uniform electric and magnetic fields are present. These two fields are parallel to each other. A charged particle is released from rest in this region. The path of the particle will be a

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