Electromagnetism

Question 1

Magnetic Field

Answer 1

A magnetic field is a region in space in which a moving charge or a current-carrying conductor or any ferromagnetic object will experience a force when it is placed in it

Question 2

Magnetic Flux Density

Answer 2

The magnetic flux density of a magnetic field is numerically equal to the force per unit length of a long straight conductor carrying a unit current at right angles to a uniform magnetic field

Question 3

Tesla

Answer 3

One tesla is the uniform magnetic flux density which, acting normally to a long straight wire carrying a current of 1A, causes a force per unit length of 1Nm-1 on the wire