Class 10 Science MCQs

Chapter 13 Magnetic Effects of Electric Current

Topics: In the chapter Magnetic effects of Electric Current we have make the online quiz based on the following topics thermal effect of current, magnetic effect of current, direction of magnetic field, magnetic field and field lines, electro magnetic induction, electric generator.

2305

1. The phenomenon of electromagnetic induction is the process of:

2300

2. The instrument used to measure potential difference is:

2299

3. The direction of induced current can be determined by:

2309

4. The moving part in an electric motor is:

2298

5. ...... showed that electricity and magnetism are related phenomena.

2306

6. Which safety device is used in domestic circuits to prevent from overloading and short-circuiting?

2296

7. Magnetic field inside a long solenoid carrying current is:

2307

8. In India, the frequency of alternating current is:

2302

9. Electric motor converts:

2301

10. The principle of an electric generator is based on:

2304

11. Electric generator converts:

2295

12. The device used for producing electric current is called a

2308

13. The consumption of electrical energy in domestic circuits is measured by an instrument called:

2297

14. Laws of Electromagnetic Induction and Electrolysis are given by:

2303

15. An electric fuse in an electric circuit is used as:

Magnetic Effect of Current:

When electric current is passed through a conductor then magnetic field is produced around the conductor. This effect is called magnetic effect of current

Magnetic Flux:

Number of magnetic lines of force passing through a surface, kept in a magnetic field, is called magnetic flux associated with that surface.

Electric generator is a device that transforms mechanical energy to electrical energy. It is based on the concept of electromagnetic induction. Generators are of two types.

(i) Alternating current generator (ii) Direct current generator

Diagram showing magnetic field lines around a current-carrying conductor.