Technical Quiz on Electrical Combat

Formula for Coulomb's Law

Answer explanation

Coulomb's Law states that the force (F) between two charged objects is directly proportional to the product of their charges (q1 and q2) and inversely proportional to the square of the distance (r) between them: F = k * (|q1 * q2| / r^2).

What is the value of the electron (e) charge?

Electric field is a ______ quantity?

• vector

• scalar

The magnetostatics highly relies on which property?

What is Flemmings left hand rule?

Naturally occurring magnets in nature are called?

What principle explains the generation of an electromotive force (EMF) in a loop when there is a variation in the magnetic field passing through it?

Answer explanation

The principle that explains the generation of an electromotive force (EMF) in a loop due to a variation in the magnetic field is Faraday's Law of Electromagnetic Induction. It states that a changing magnetic field induces an EMF.

The change in magnetic flux through a circuit induces an electromotive force according to _____ law.

• Faraday's

• Lenz's

The phenomenon called electromagnetic induction was first investigated by _______

Answer explanation

The phenomenon of electromagnetic induction was first investigated by Michael Faraday in the 1830s, demonstrating how a changing magnetic field can induce an electric current.

Unit of magnetic flux