KCET2019PhysicsElectrostatics
Two metal plates are separated by ( 2 ~cm ). The potentials of the plates are ( -10 ~V ) and ( +30 ~V ). The electric field between the two plates is :
Options
- A( 200 ~V / m )
- B( 500 ~V / m )
- C( 3000 ~V / m )
- D( 1000 ~V / m )
Correct answer
A. ( 200 ~V / m )
Step-by-step solution
(A) ( E= V = 30-(-10) 2 10⁻² =2000 Vm ⁻¹ ) ( ( = ) distance between two plates)