The work done in moving 5 C of charge between two points kept at a potential difference of 4 V is

1. Use V = W / q rearranged to W = V * q. 2. W = 4 V * 5 C. 3. W = 20 J. 4. Hence option A is correct. _Source: Selina Concise Physics Class 9, Ch 9 Current Electricity (Mistral OCR'd PDF), section on potential difference_