i. ………..is expressed in oersted. ii. Electromagnetic induction was discovered by………..

Question

Fill in the blanks and rewrite the completed statements:

i. ………..is expressed in oersted.

ii. Electromagnetic induction was discovered by………..

iii. A galvanometer is used for………

iv. In India, the frequency of alternating current is……….

v. Electric motor converts electric energy into………

vi. Electric generator converts………..energy into electric energy.

Answer 1

i. Intensity of magnetic field is expressed in oersted.

ii. Electromagnetic induction was discovered by Michael Faraday and independently by Joseph Henry.

iii. A galvanometer is used for detecting the presence of current in a circuit, as well as for some electrical measurements.

iv. In India, the frequency of alternating current is 50 Hz or 50 cycles per second.

v. Electric motor converts electric energy into mechanical energy.

vi. Electric generator converts mechanical energy into electric energy.