Electrical Power and Potential Difference

Question 1

What is the equation for power, P (watts, W)?

Answer 1

Energy transferred, E (joules, J) / Time, t (seconds, s)

Question 2

What is the eqyation for power supplied, P (watts, W)?

Answer 2

Current, I (amperes, A) x Potential difference, V (volts, V)

Question 3

What is the equation for resistance, R (Omega symbol)?

Answer 3

Power, P (W) / Current^2, I^2 (A)

Question 4

What are the different levels of fuses for household appliances?

Answer 4

1 A, 3 A, 5 A, 13 A