An electric kettle operates at 230V and draws a current of 13A. What would the equivalent current be at the following voltages used in the UK National Grid? Show all your working.

Question

An electric kettle operates at 230V and draws a current of 13A. What would the equivalent current be at the following voltages used in the UK National Grid? Show all your working. 
a) 33kV (33000V) (4 marks)

b) 400kV (4 marks)

bobpursley · Answer

Power used: 230*13 Current used= 230*13/33,000