Electricity: Magnetic and Heating Effects MCQ: 8th Science Chapter 4

Boost your CBSE exam preparation with our Class 8 Science Chapter 4 – Electricity: Magnetic and Heating Effects MCQ Test. This free quiz is designed from NCERT textbooks, aligned with the CBSE syllabus, and supported by educational videos and Vidyalite’s Flashcards. It covers core topics like the heating effect of electric current, magnetic effect of current, electromagnets, electric fuses, and practical applications in daily life.

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Time: 10 Minutes for 10 Question.

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8th Science: Electricity: Magnetic and Heating Effects

1 / 10

1. Which type of battery is most common in devices like smartphones?

Lead-acid

Alkaline

Lithium-ion

Voltaic

2 / 10

2. Which part of an electromagnet becomes magnetic when current flows?

Plastic coil

Iron nail core

Air around it

Copper strip

3 / 10

3. What kind of energy conversion happens in a heater using electric current?

Light to sound

Electrical to magnetic

Chemical to thermal

Electrical to heat

4 / 10

4. Which wire is used in Activity 4.5 to observe heating effect?

Copper

Aluminium

Nichrome

Steel

5 / 10

5. What is the heating effect of electric current?

Movement of wires

Emission of sound

Production of light

Generation of heat in conductor

6 / 10

6. Who discovered the magnetic effect of electric current?

Alessandro Volta

Hans Christian Oersted

Isaac Newton

Thomas Edison

7 / 10

7. Why is the dry cell called 'dry'?

It contains oil

It uses a solid wire

The electrolyte is a paste

It doesn’t produce current

8 / 10

8. What is the phenomenon called when electric current produces a magnetic field?

Magnetic charge

Electric deflection

Magnetic effect of electric current

Electromagnetic reaction

9 / 10

9. What are rechargeable batteries better at compared to dry cells?

Cost more

Can be reused

Need lemon juice

Have iron nails

10 / 10

10. In which industry is heating effect of electric current used to recycle metal?

Textile

Steel manufacturing

Paper

Food packaging

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