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.

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

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2. The moving part in an electric motor is:

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

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

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

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

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

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8. Electric generator converts:

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

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

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

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

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13. The instrument used to measure potential difference is:

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

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

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.