Compute the voltage drop across a 2 KW electric heater element whose resistance when hot is 20 ohm.

P= V2/R

P= 2kW= 2000W

R= 20 ohm

2000 = V2/20

V2 = 2000 x 20

V2= 40000

V= 200V

  • 8
What are you looking for?