Read the following paragraph and answer the questions:
Total amount of work done in bringing the different charges to their respective positions from infinitely large mutual separation is defined as Electrostatic potential energy of a system.
Work done in carrying charge to any point from infinity is product of potential and charge:
W Potential `xx` Charge
This work is stored in the system of two point charges in the form of electrostatic potential energy U of the system.

A proton moves a distance d in a uniform electric field E as shown in figure. The work done on the proton by the electric field is:

Options

A. Negative
B. Zero
C. Positive
D. First positive then decrease to zero

Answer

A

Explanation

negative
Explanation: Since, the proton is against the direction of the field, so work is done on the proton against electric field. This implies that the electric field does negative work on the proton.