mosfet enquiries

Hi everyone i have 2 mosfet with me which are IRF610PBF and IRF9610PBF . im not familiar with mosfet so pls forgive me if my question sounds stupid and pls giv some guidance and advice on how to use it

My question is as for BJT we have a hfe value for it what about mosfet? how can we check its gain value when we are using a mosfet.

Thanks for replying.

The measure of gain for a MOSFET is change in the amps of drain current as a function of change in volts of gate drive (Amps/Volts = Mhos). The modern term is forward transconductance, Gfs, which is expressed in Siemens.

Gfs is probably on the datasheet. Otherwise, find the graph that shows drain current vs gate voltage.