Question

What is the SI unit of magnetic induction ?
$
  (a){\text{ Coulomb}} \\
  {\text{(b) Tesla}} \\
  {\text{(c) Curie}} \\
  {\text{(d) None}} \\
 $

Answer 1

Hint – In this question use the concept that magnetic induction is nothing but magnetic flux density. Use the definition of magnetic induction that it refers to the production of electromotive force (voltage) across an electrical conductor in the surrounding changing magnetic field.

Complete step-by-step answer:
As we know magnetic induction is also known as magnetic flux density (B).
And it is the amount of magnetic flux per unit area.
Magnetic flux is denoted by weber (wb).
Therefore, B = wb / m2 where m2 is the unit of the area.
And it is first discovered by Henry Nicholls Tesla.
So on the name of his S.I unit is decided.
So the S.I unit of magnetic induction is Tesla.
So this is the required answer.
Hence option (B) is correct.

Note – SI units is known as international systems of units, it is a system of physical units based upon the meter, kilogram, second, ampere, kelvin, candela and mole together with a set of prefixes to indicate the multiplication or division by a power of 10.