Question

Assertion: if the speed of a charged particle increases, both the mass as well as the charge increas

Answer 1

mass of the paricle when particle moves with high speed v is given by:

m =
$\frac{m}{ \sqrt{1 - \frac{ {v}^{2} }{ {c}^{2} } } }$


therefore when speed of the particle increases, mass of the particle remains same.charge remains unaffected by the speed of the speed of the particle.