Magnetic Effects of Electric Current (NSO Level 1- Science Olympiad (SOF) Class 10): Questions 1 - 5 of 58

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Question number: 1

» Magnetic Effects of Electric Current

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MCQ▾

Question

No force acts on a current carrying conductor when it is placed

Choices

Choice (4) Response

a.

Perpendicular to the magnetic field

b.

Far away from the magnetic field

c.

Parallel to the magnetic field

d.

Inside a magnetic field

Question number: 2

» Magnetic Effects of Electric Current

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MCQ▾

Question

If the key in the arrangement as shown below is taken out (the circuit is made open) and magnetic field lines are drawn over the horizontal plane ABCD, the lines are

The horizontal plane ABCD

The Horizontal Plane ABCD

The horizontal plane ABCD

Choices

Choice (4) Response

a.

Straight lines parallel to each other

b.

Elliptical in shape

c.

Concentric circles near the point O but of elliptical shapes as we go away from it

d.

Concentric circles

Question number: 3

» Magnetic Effects of Electric Current

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MCQ▾

Question

Which of the following is not true?

Choices

Choice (4) Response

a.

Magnetic field inside solenoid is uniform

b.

To find the direction of Magnetic field, Right Thumb Rule is used

c.

Magnetic field has magnitude nut not direction.

d.

All of the above

Question number: 4

» Magnetic Effects of Electric Current

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MCQ▾

Question

A circular coil and a bar magnet recede from each other with the same velocity. Then,

Choices

Choice (4) Response

a.

An emf will be induced in the magnet

b.

There will be no induced emf in the coil

c.

There will be an induced emf in the coil

d.

Question does not provide sufficient data or is vague

Question number: 5

» Magnetic Effects of Electric Current

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MCQ▾

Question

Choose the correct option. Different ways to induce current in a coil is

(i) By keeping the magnet in a fixed position and moving the coil towards and away from the magnet

(ii) By pushing or pulling a bar magnet into or away from a coil

(iii) If a coil is moved rapidly between the two poles of a hours-shoe magnet, then an electrical current is induced in the coil

Choices

Choice (4) Response

a.

(i) and (iii)

b.

(ii) and (iii)

c.

(i) and (ii)

d.

(i), (ii) and (iii)

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