COMEDK 2024 Evening Shift | Moving Charges and Magnetism Question 1 | Physics

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

COMEDK 2024 Morning Shift

MCQ (Single Correct Answer)

-0

Current flows through uniform, square frames as shown in the figure. In which case is the magnetic field at the centre of the frame not zero?

COMEDK 2024 Morning Shift Physics - Moving Charges and Magnetism Question 4 English

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