I'm currently doing an assignment and I've been asked to find the maximum power dissipation in a MOSFET. I've been told that this is equal to the the current through the MOSFET times the voltage across it
Where \$V_D\$ is 26V and \$V_S\$ is variable from 0 to 15V. My only problem is i'm not sure what the relation is for the current? I've so far assumed the current through the drain is equal to the current through the source.
The lowest value of \$R_L\$ is 22.7 ohms and the highest is 10,000 ohms. My initial calculation gave me roughly 15W using the lowest value for \$R_L\$. Is this anywhere close or is there a relationship i'm missing?