KCET2019PhysicsElectrostatics
The figure gives the electric potential ( V ) as a function of distance through four regions on ( x- ) axis. Which of the following is true for the magnitude of the electric field ( E ) in these regions?
Options
- A( E_ B =E_ D ) and ( E_ A < E_ C )
- B( E_ A >E_ B >E_ C >E_ D )
- C( E_ A < E_ B < E_ C < E_ D )
- D( E_ A =E_ C ) and ( E_ B < E_ D )
Correct answer
D. ( E_ A =E_ C ) and ( E_ B < E_ D )
Step-by-step solution
In region A , V = constant E_ A =0 In region B , E_ B = 4-2 2 =1 vm ⁻¹ In region C , V = constant E _ - C =0 In Region D , E_ D = 4-2 1 =2 vm ⁻¹ Here E_ A =E_ C and E_ B < E_ D