NEET 2017 | NEET Year Wise Previous Years Questions

An arrangement of three parallel straight wires placed perpendicular to plane of paper carrying same current $$'I'$$ along the same direction as shown in fogure. Magnitude of force per unit length on the middle wire $$'B'$$ is given by

NEET 2017 Physics - Moving Charges and Magnetism Question 72 English

NEET 2017 Physics - Moving Charges and Magnetism Question 72 English

$${{2{\mu _0}{I^2}} \over {\pi d}}$$

$${{\sqrt 2 {\mu _0}{I^2}} \over {\pi d}}$$

$${{{\mu _0}{I^2}} \over {\sqrt 2 \pi d}}$$

$${{{\mu _0}{I^2}} \over {2\pi d}}$$

NEET 2017

MCQ (Single Correct Answer)

-1

If $$\theta $$₁ and $$\theta $$₂ be the apparent angles of dip observed in two vertical planes at right angles to each other, then the true angle of dip $$\theta $$ is given by

tan²$$\theta $$ = tan²$$\theta $$₁ + tan²$$\theta $$₂

cot²$$\theta $$ = cot²$$\theta $$₁ $$-$$cot²$$\theta $$₂

tan²$$\theta $$ = tan²$$\theta $$₁ $$-$$ tan²$$\theta $$₂

cot²$$\theta $$ = cot²$$\theta $$₁ + cot²$$\theta $$₂

NEET 2017

MCQ (Single Correct Answer)

-1

A 250-turn rectangular coil of length 2.1 cm and width 1.25 cm carries a current of 85 $$\mu $$A and subjected to a magnetic field of strength 0.85 T. Work done for rotating the coil by 180^o against the torque is

4.55 $$\mu $$J

2.3 $$\mu $$J

1.15 $$\mu $$J

9.1 $$\mu $$J

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