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)
physics - bobpursley, Saturday, March 12, 2011 at 2:00pm
Power used: 230*13
Current used= 230*13/33,000