Compute the voltage drop across a 2 KW electric heater element whose resistance when hot is 20 ohm. Share with your friends Share 0 Neha Sarin answered this P= V2/RP= 2kW= 2000WR= 20 ohm2000 = V2/20V2 = 2000 x 20V2= 40000V= 200V 8 View Full Answer