question_answer

An ionized gas contains both positive and negative ions. If it is subjected simultaneously to an electric field along the \[+x\]-direction and a magnetic field along the \[+z\]-direction, then

A) positive ions deflect towards \[+y\]-direction and negative ions towards -y direction

B) all ions deflect towards \[+y\]-direction

C) all ions deflect towards \[~-y\]-direction

D) positive ions deflect towards \[~-y\]-direction and negative ions towards \[~+y\]-direction.