Recent content by nobrainer612

"Estimated" equivalent resistance Homework Statement Suppose I have a circuit like the one below, how will you "estimated" the equivalent resistance without using calculation? I know how to calculate equivalent resistance by using Formula: R1 * R2 / (R1+R2) . But can anyone use their logic...

Homework Statement An electron ( m = 9.11 * 10^-31 kg) moves in a circular orbit of radius 0.4 * 10^-10 m with an angular velocity of 2* 10^16 rad/s. Find the centripetal force required to hold the electron. Homework Equations This is one question from the chapter " Forces Due to...

Homework Statement I saw this image in the internet. I want to learn how to recognize the gate, source and drain for NMOS and PMOS. The Attempt at a Solution I don't know if I am correct or not. M8 ( with an arrow coming out ) is NMOS. M7B (with an arrow going in) is a PMOS...

Homework Statement Hello. When I looked at my lab manual, I saw the capacitor CB is connected in reversed direction. The AC source is connected to resistor RS, then connected to the negative polarity of CB. But I have no idea why it connects in reverse. Can please anyone tell me the reason...

I still don't quite understand why for the output impedance Zout , we are ignoring RE1 and CE? I have tried to look at the small signal model for the transistor on the internet, but having a hard time understand what it says. Can anyone please tell me how the small signal model for transistor...

Homework Statement I drew the emitted audio amplifier in the picture below. When I looked at my lab manual, it says the impedance should be Zin and Zout, which Zin = R1*R2/(R1+R2) and Zout = Rc I have a few questions about impedance relate to this circuit: 1.) I saw the...

Thank you. I laughed when I finished looking at all those reviews.

Homework Statement I built an amplifier in the breadboard so I want to test it out. I know there is a type of wire that one side can connect to the ipod and the other side separate into power (red in color) and ground ( black in wire) But I forgot the name of the wire, so I want to ask if...

yea , that is k. And why do we need to find W first? Can we just find V by using V=-∫E.dl ?

Homework Statement Below is a graphic representation of the problem. With a point charge at the origin, calculate the difference in potential of point B relative to point A using the path integral. Homework Equations As I recalled, to find the electric potential difference, Vab = - ∫ E ° dl...

sorry but I don't get what you mean. Can you tell me if those I assumed are correct? because I am interested what the resistance is . simplify this expression: Rp*Rp/(Rp + Rp) : isn't that equal (Rp^2) / 2*Rp = Rp/2? So what I assumed: if A is high (value 1) and B is low ( value...

Homework Statement I drew a NAND in the picture. The Attempt at a Solution I know when A and B are both high ( value 1), resistance will be Rn + Rn because those 2 NMOS will be turned on and resistance will added up since they are in series. Also when A and B are both...

nevermind. I know how to solve it

Homework Statement It given the expression . how to construct the complex CMOS gate by looking at the expression. Homework Equations The Attempt at a Solution This solution is given as well. I don't understand how he construct it. I know NAND is fromed by two PMOS in...

Hello. One of my friends told me that the logic function for (A.or.B).and.(C.or.D) is From a book, I know the P1, P2 , N1, N2 form a NAND. The same for P3, P4, N3, N4. And P5, P6, N5, N6 form a NOR. My question is, is this circuit the same as (A.or.B).and.(C.or.D) ? Thank you