Question

Define one tesla using the expression for the magnetic force acting on a particle of charge ‘q’ moving with velocity \(\overrightarrow{V}\) in a magnetic field \(\overrightarrow{B}\).

Answer 1

One tesla is the magnetic field in which a charge of 1 C moving with a velocity of 1 ms^–1 , normal to the magnetic field, experiences a force of 1 N.

\(B=\frac{F}{q\text{v}\,sin\,\theta}\)

If F = 1 N, q = 1C, v = 1 ms^-1, θ = 90°

= 1 NA^-1 m^-1 = 1 tesla