Electrical Engineering : Magnetism And Electromagnetism QUESTIONS AND ANSWERS :: part2 : 1 to 5

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

1.The working of a meter is based on the use of a permanent magnet. In order to protect the meter functioning from stray magnetic fields

meter is surrounded by strong magnetic fields

a soft iron shielding is used

a plastic shielding is provided

a shielding of anon-magnetic material is used

2.The relative permeability is less than unity is case of

ferromagnetic materials

ferrites

non-ferrous materials

diamagnetic materials

3.The Biot-savart's law is a general modification of

Kirchhoffs law

Lenz's law

Ampere's law

Faraday's laws

4.The electromagnet has 50 turns and a current of 1A flows through the coil. If the length of the magnet circuit is 200 mm, what is the magnetic field strength ?

2500 AT/m

250 AT/m

25 AT/m

2.5 AT/m

5.. The unit of flux is the same as that of

reluctance

resistance

permeance

pole strength

More Magnetism And Electromagnetism QUESTIONS AND ANSWERS available in next pages