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.

2298

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

2294

2. At the time of short circuit, the current in the circuit .......

2307

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

2303

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

2301

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

2308

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

2300

7. The instrument used to measure potential difference is:

2304

8. Electric generator converts:

2302

9. Electric motor converts:

2305

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

2299

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

2309

12. The moving part in an electric motor is:

2295

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

2306

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

2297

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

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.