How to control a 12v motor with a momentary switch

[DaveX]

@spicyphoton

But I'm having a difficult time figuring out how to connect that to the mosfet.

Does this thread help?

How to use a MOSFET as a switch. (controlled by arduino)

I'm relatively familiar with the working and biasing calculations of Bipolar Junction Transistor. However, this is my first time using a MOSFET and I'm not sure how to use a MOSFET as a switch. My main concern is how to ensure that the MOSFET is in saturation. (i.e fully on). Should I just connect the gate to the source to make the gate voltage equal to the source voltage? The current I want to control is around 10 - 15 A. It's for my coilguns' solenoid and the current should be in the form of …