asked
Mar 10, 2018
by
anonymous

The base of electrical engineering is electromagnetism. You found electromagnetism everywhere in a electrical devices around you.

answered
Dec 21, 2018
by
Saqibhayat556

**Description :** Who first noticed electromagnetism ?

**Last Answer :** : Scientist Orested first noticed electromagnetism.

**Description :** A particular device uses electromagnetism by using electricity to move magnets. The magnets in this device are than used to work. Which device uses electromagnetism In this way?

**Last Answer :** An electric motor

**Description :** Dipoles in any electric field undergo a) Magnetism b) Electromagnetism c) Magnetisation d) Polarisation

**Last Answer :** d) Polarisation

**Description :** Who founded and named the science of electromagnetism?

**Last Answer :** Andre Marie Ampere

**Description :** The branch of physics which deals with the charges at rest: (a) Current electricity (b) Electromagnetism (c) Electrostatics (d) Nuclear physics

**Last Answer :** (c) Electrostatics

**Description :** Define: (i) Electromagnetism (ii) Magnetic flux.

**Last Answer :** i)Electromagnetism : It is the magnetism generated by electricity. OR It is defined as the phenomenon associated with electric and magnetic fields and their interactions with each other. ii) Magnetic flux : The total number of magnetic lines of force in a magnetic field is called magnetic flux.

**Description :** Gauss' law of electricity, Gauss' law of magnetism, Faraday's law of induction, and Amperes' law form the basic equations of electromagnetism. This combination is collectively known as: w) Coulomb's equations x) Volta's equations y) Fermi's equations z) Maxwell's equations

**Last Answer :** ANSWER: Z -- MAXWELL'S EQUATIONS

**Description :** The rms value of the current in a wire which carries a d.c. current of 10 A and a sinusoidal alternating current of peak value 20 A is (A) 10 A (B) 14.14 A (C) 15 A (D) 17.32 A

**Last Answer :** The rms value of the current in a wire which carries a d.c. current of 10 A and a sinusoidal alternating current of peak value 20 A is 17.32 A

**Description :** The inductance of a long solenoid of length 1000 mm wound uniformly with 3000 turns on a cylindrical paper tube of 60 mm diameter is (A) 3.2 µH (B) 3.2 mH (C) 32.0 mH (D) 3.2 H

**Last Answer :** The inductance of a long solenoid of length 1000 mm wound uniformly with 3000 turns on a cylindrical paper tube of 60 mm diameter is 32.0 mH

**Description :** How can a magnetic field be used to generate an electric current?

**Last Answer :** Magnetic field can be used to generate electric current on a condition that it is on a rate of changing magnetic flux. (Faraday's law)