so our professor gave us an assignment of mic to speaker amplifying cct but the output voltage is always in micro or milli volt range so i decided to start with something simple a common source amplifier but when i draw it on multisim i still get output voltage in the range of milli or micro volts

idk how too upload the multisim design itself

 

First you have to bias the amplifier in its active region.
Has your prof taught you about that?

 

ughh right 4vpk should do it right ? to be in sat region?
howwwwwwwwever now it gives const Vout (9vpp) regardless of Vinp

 

So now you need to research how typical FET amplifier stages are configured for amplifying weak AC signals.

 

See

 

See

We normally don't do the homework problem for the op in this forum.
We help them find a solution so they can better learn.

 

I did not use multisim.
Do you think that a beginner will be able to come up with a circuitry that specifies the mode of the transistor? He can peep it at the other, and if it you are lucky, you will find it in textbooks. I just reduced the amount of effort. Or study the difficulties is the goal?

 

I did not use multisim.
Do you think that a beginner will be able to come up with a circuitry that specifies the mode of the transistor? He can peep it at the other, and if it you are lucky, you will find it in textbooks. I just reduced the amount of effort. Or study the difficulties is the goal?

It's trivial to transfer a circuit from Ltspice to Multisim since they are both Spice simulators.

The goal of studies is for the OP to learn how to solve the problem on his own.
I think it's better to direct him towards articles or tutorials that discuss his problem rather the giving him a solution.

 

Common Source JFET tutorial .... for your viewing pleasure.