AIIMS 2018 | Moving Charges and Magnetism Question 8 | Physics

An element $$d l=d x \hat{\mathbf{i}}$$ (where, $$d x=1 \mathrm{~cm}$$ ) is placed at the origin and carries a large current $$i=10 \mathrm{~A}$$. What is the magnetic field on the $$Y$$-axis at a distance of $$0.5 \mathrm{~m}$$ ?

$$2 \times 10^{-8} \hat{\mathbf{k}} T$$

$$4 \times 10^{-8} \hat{\mathbf{k}} \mathbf{T}$$

$$-2 \times 10^{-8} \hat{\mathbf{k}} T$$

$$-4 \times 10^{-8} \hat{\mathbf{k}} T$$

AIIMS 2018

MCQ (Single Correct Answer)

-0.33

Consider the following figure, a uniform magnetic field of 0.2 T is directed along the positive X-axis. The magnetic flux through top surface of the figure.

AIIMS 2018 Physics - Moving Charges and Magnetism Question 7 English

zero

0.8 m-Wb

1.0 m-Wb

$$-$$1.8 m-Wb

AIIMS 2018

MCQ (Single Correct Answer)

-0.33

Assertion A magnetic field interacts with a moving charge and not with a stationary charge.

Reason A moving charge produce a magnetic field.

Both Assertion and Reason are correct, Reason is the correct explanation of Assertion

Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion

Assertion is correct and Reason is incorrect

Assertion is incorrect and Reason is correct

AIIMS 2017

MCQ (Single Correct Answer)

-0.33

A long wire having a semicircular loop of radius r carries a current i as shown in figure. The magnetic induction at the centre O due to entire

AIIMS 2017 Physics - Moving Charges and Magnetism Question 3 English

$$\frac{\mu_0 i}{4 r}$$

$$\frac{\mu_0 i^2}{4 r}$$

$$\frac{\mu_0 i}{4 r^2}$$

None of these

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