NEET Physics: Questions 593 - 596 of 2098

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Question number: 593

» Magnetic Effects of Current and Magnetism » Current Loop as Magnetic Dipole

MCQ▾

Question

The magnetic moment of a current carrying circular coil is

Choices

Choice (4) Response

a.

Directly proportional to the square of the length of the wire

b.

Directly proportional to the length of the wire

c.

Inversely proportional to the length of the wire

d.

Inversely proportional to the square of the length of the wire

Question number: 594

» Magnetic Effects of Current and Magnetism » Electric Charge Moving in Magnetic Field

MCQ▾

Question

A particle of mass m and charge q moves with a constant velocity v along the positive x direction. It enters a region containing a uniform magnetic field B directed along the negative z direction, extending from x = a to x = b. The minimum value of v required so that the particle can just enter the region x < b is

Choices

Choice (4) Response

a.

q(ba)Bm

b.

qbBm

c.

qaBm

d.

q(b+a)B2m

Question number: 595

» Electromagnetic Induction & Alternating Currents » Lenz's Law

MCQ▾

Question

A current carrying solenoid is approaching a conducting loop as shown in the figure. The direction of induced current as observed by an observer on the other side of the loop will be –

Current carrying solenoid

Current Carrying Solenoid

A current carrying solenoid is approaching a conducting loop as shown in the figure.

Choices

Choice (4) Response

a.

Clockwise

b.

West

c.

East

d.

Anti-clockwise

Question number: 596

» Magnetic Effects of Current and Magnetism » Current Loop as Magnetic Dipole

MCQ▾

Question

A circular loop of area 0.01m 2 carrying a current of 10 A, is held perpendicular to a magnetic field of intensity 0.1 T. The torque acting on the loop is

Choices

Choice (4) Response

a.

Zero

b.

0.8 Nm

c.

0.01 Nm

d.

0.001 Nm

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