Magnetic Effects of Current and Magnetism [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 60 - 63 of 246

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Question 60

Question MCQ▾

A circular loop of area 0.01m2 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.

0.01 Nm

b.

0.8 Nm

c.

Zero

d.

0.001 Nm

Edit

Question 61

Question MCQ▾

Four wires each of length 2.0 meter are bent into four loops P, Q, R and S and then suspended into uniform magnetic field. Same current is passed in each loop. Which statements are incorrect?

Four Current Carrying Loops P, Q, R and S

(1) Couple on loop P will be the highest

(2) Couple on loop Q will be the highest

(3) Couple on loop R will be the highest

(4) Couple on loop S will be the highest

Select the correct answers and mark it according to the following codes:

Choices

Choice (4)Response

a.

1 and 2 are correct

b.

2 and 4 are correct

c.

1 and 3 are correct

d.

1,2 and 3 are correct

Edit

Question 62

Question MCQ▾

An α-particle is moving in a magnetic field of tesla with a velocity of . The magnetic force acting on the particle will be

Choices

Choice (4)Response

a.

0

b.

c.

d.

Edit

Question 63

Question MCQ▾

If a diamagnetic solution is poured into a U-tube and one arm of this U-tube placed between the poles of a strong magnet with the meniscus in a line with field, then the level of the solution will

Choices

Choice (4)Response

a.

Rise

b.

Oscillate slowly

c.

fall

d.

remain as such

Edit