Physics-Magnetism & Electricity at Work (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 13 - 19 of 47

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Question number: 13

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

A magnetic needle kept in a non-uniform magnetic field experiences

Choices

Choice (4) Response

a.

a torque but not a force

b.

a force and torque

c.

Neither a torque nor a force

d.

a force but not a torque

Question number: 14

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

The given figure represents a material which is

The image is A material .

The Image Is a Material.

Find the type of the material

Choices

Choice (4) Response

a.

paramagnetic

b.

diamagnetic

c.

ferromagnetic

d.

All of the above

Question number: 15

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

If a magnet is hanged with its magnetic axis then it stops in

Choices

Choice (4) Response

a.

magnetic meridian

b.

angle of dip

c.

geometric meridian

d.

Question does not provide sufficient data or is vague

Question number: 16

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

Unit of magnetic permeability is

Choices

Choice (4) Response

a.

Henry/meter

b.

Henry

c.

Ampere/meter 2

d.

Ampere/meter

Question number: 17

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

Which of the following materials has got the maximum retentivity?

Choices

Choice (4) Response

a.

Zinc

b.

hard iron

c.

Copper

d.

Soft iron

Question number: 18

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

The magnetic field at P due to the magnet NS is

A magnet creating a magnetic field around i

A Magnet Creating a Magnetic Field Around I

Find the direction of magnetic field due to magnet

Choices

Choice (4) Response

a.

along OP

b.

along PO

c.

parallel to NS

d.

None of the above

Question number: 19

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

The area enclosed by a hysteresis loop is a measure of

Choices

Choice (4) Response

a.

permeability

b.

retentivity

c.

susceptibility

d.

energy loss per cycle

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