An electric heater supplies heat to a system at a rate of 100W. If system performs work at a rate of 75 joules per second. At what rate is the internal energy increasing? An electric heater supplies heat to a system at a rate of 100W. If system performs work at a rate of 75 joules per second. At what rate is the internal energy increasing? September 13, 2021 Category: Chapter 11 - Thermodynamics , NCERT Exemplar Class 11 , Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related