Question

Input power ofelectric heater whan connected 230v or 10A current

Answer 1

conditions power is voltage times current. So I = P / V = 1000/250 = 4 amps.

Now R = E / I = 250/4 = 62.5

P = (I*2) x R = 16 x 62.5 = 1000 or

P = (V*2)/R = 62,500 / 62.5 = 1000

If the resistance of the load stays the same, then Power

P = (V*2)/R = 200*2 / 62.5 = 40,000 / 62.5 = 640W

If the resistance changes with temperature, then this would not be correct.