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Page No 237: - Chapter 13 Magnetic Effect Of Electric Current class 10 ncert solutions Science - SaraNextGen [2024]


Question 1:

State the principle of an electric generator.

Answer:

An electric generator works on the principle of electromagnetic induction. It generates electricity by rotating a coil in a magnetic field.

Question 2:

Name some sources of direct current.

Answer:

Some sources of direct current are cell, DC generator, etc.

Question 3:

Which sources produce alternating current?

Answer:

AC generators, power plants, etc., produce alternating current.

Question 4:

Choose the correct option.

A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each

(a) two revolutions

(b) one revolution

(c) half revolution

(d) one-fourth revolution

Answer:

(c) When a rectangular coil of copper is rotated in a magnetic field, the direction of the induced current in the coil changes once in each half revolution. As a result, the direction of current in the coil remains the same.

Also Read : Page-No-238:-Chapter-13-Magnetic-Effect-Of-Electric-Current-class-10-ncert-solutions-Science

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