Physics-Magnetism & Electricity at Work (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 1 - 5 of 47

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1058 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

Question number: 1

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

There are two electric bulbs of 40 W and 100 W. Which one will be brighter when first connected in series and then in parallel?

Choices

Choice (4) Response

a.

40 W in series and 100 W in parallel

b.

100 W in series and 40 W in parallel

c.

40 W both in series and parallel will be uniform

d.

100 W both in series and parallel will be uniform

Question number: 2

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

A permanent magnet

Choices

Choice (4) Response

a.

attracts magnetic substances and repels all non-magnetic substances

b.

attracts all substances

c.

attracts only magnetic substances

d.

attracts non-magnetic substances and repels magnetic substances

Question number: 3

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

If in the circuit, power dissipation is 150 W, then R is

The image display is power circut.

The Image Display Is Power Circut.

Find the value of one resistance in a Parallel circuit

Choices

Choice (4) Response

a.

4 Ω

b.

6 Ω

c.

5 Ω

d.

None of the above

Question number: 4

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

On applying an external magnetic field to a ferromagnetic substance domains

Choices

Choice (4) Response

a.

align in the direction opposite to magnetic field

b.

remains unaffected

c.

align in the direction of magnetic field

d.

All of the above

Question number: 5

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

A current of 0.5 A is drawn by a filament of an electric bulb for half an hour. What is the amount of electric charge that flows through the circuit?

Choices

Choice (4) Response

a.

900°C

b.

9°C

c.

5°C

d.

600°C

f Page
Sign In