What is the force acting on a charged particle moving in combined electric and magnetic fields called?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Lorentz force
NCERT (2026-27):
Summary – “1. The total force on a charge q moving with velocity v in the presence of magnetic and electric fields B and E, respectively is called the Lorentz force. It is given by the expression:”
\( \mathbf{F}=q\,(\mathbf{v}\times\mathbf{B}+\mathbf{E}) \)