b) Circuit below is used for testing a power MOSFET. Testing is done under following conditions: Vdc = 90 V, R = 5 Ω, Von = 0.09 V (Vds voltage drop in on-state), switching frequency fSW = 8 kHz and duty cycle d = 0.65. Calculate the current through the MOSFET when it is on, and the conduction losses. [9 marks] Ids = Number A Pcond = Number W