COMEDK 2025 Morning Shift | Moving Charges and Magnetism Question 3 | Physics

A charged particle is released from rest in a region of space in which steady and uniform electric and magnetic fields are parallel to each other. The particle will move in a

Helix

Straight line

Cycloid

Circle

COMEDK 2024 Evening Shift

MCQ (Single Correct Answer)

-0

A current I flows in an infinitely long wire with cross section in the form of semi-circular ring of radius $$1 \mathrm{~m}$$. The magnitude of the magnetic induction along its axis is

$$\frac{\mu_0 \mathrm{I}}{2 \pi} \mathrm{T}$$

$$\frac{\mu_0 \mathrm{I}}{\pi^2} \mathrm{~T}$$

$$\frac{\mu_0 \mathrm{I}}{4 \pi^2} \mathrm{~T}$$

$$\frac{\mu_0 \mathrm{I}}{2 \pi^2} \mathrm{~T}$$

COMEDK 2024 Evening Shift

MCQ (Single Correct Answer)

-0

A negative charge particle is moving upward in a magnetic field which is towards north. The particle is deflected towards

North

South

East

West

COMEDK 2024 Evening Shift

MCQ (Single Correct Answer)

-0

A wire of length $$2 \mathrm{~m}$$ carries a current of $$1 \mathrm{~A}$$ along the $$\mathrm{x}$$ axis. A magnetic field $$B=B_0(i+j+k)$$ tesla exists in space. The magnitude of magnetic force on the wire is

2B$$_0$$ N

Zero

3B$$_0$$ N

2$$\sqrt2$$B$$_0$$ N

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