What are the primary charge carriers in an npn bjt? what about a pnp bjt? 2. (10 points) consider a pnp bjt with vb> ve> vc. what mode is the device in? 3. (10 points) what is the primary charge carrier of an n-channel mosfet? what about a pchannel mosfet? 4. (10 points) when the gate-source voltage of an n-channel mosfet is significantly higher than both the threshold and the drain-source voltage, what mode of operation is the device in? 5. (20 points)