Help with Problems: Solutions Here!

  • Thread starter Thread starter haikuman
  • Start date Start date
AI Thread Summary
The discussion focuses on seeking help with problems related to Ideal Op-Amps and current sources. Key concepts include the two golden rules for Op-Amps, which pertain to current and voltage behavior at the terminals. Participants are encouraged to analyze an Inverting Op-Amp using techniques like Kirchhoff's Current Law (KCL) and Ohm's Law. The conversation suggests not to attempt more complex problems until foundational questions are understood. The inquiry also confirms whether the individual is enrolled in an electronics course.
haikuman
Messages
1
Reaction score
0
Please help me with these problems I have no idea how to do them.

Screen shot 2011-09-29 at 8.54.13 PM.png
 
Physics news on Phys.org


For Ideal Op-Amps, you should know the two golden rules governing the + and - terminals, one relates to the currents and one relates to the voltages. Do you know them?

1) What are the characteristics of an Ideal Current Source?

2) This basic problem shows you how to analyse an Inverting Op-Amp. You can treat it as a circuit and use all the tricks you have up your sleeve, specifically KCL at the node between the 2kR, 18kR and inverting input, and then Ohms Law at the output.

Don't try 3) and 4) until you can complete 1) and 2).
 


haikuman said:
Please help me with these problems I have no idea how to do them.
Just checking: are you studying an electronics course?
 
Thread 'Have I solved this structural engineering equation correctly?'

Thread 'Have I solved this structural engineering equation correctly?'

Hi all, I have a structural engineering book from 1979. I am trying to follow it as best as I can. I have come to a formula that calculates the rotations in radians at the rigid joint that requires an iterative procedure. This equation comes in the form of: $$ x_i = \frac {Q_ih_i + Q_{i+1}h_{i+1}}{4K} + \frac {C}{K}x_{i-1} + \frac {C}{K}x_{i+1} $$ Where: ## Q ## is the horizontal storey shear ## h ## is the storey height ## K = (6G_i + C_i + C_{i+1}) ## ## G = \frac {I_g}{h} ## ## C...
View full post »

Similar threads

Beam boundary condition problem
Replies
12
Views
2K
Engineering Double overhanging beam deflection
Replies
4
Views
2K
Comp Sci How do I think about recursion in programming?
Replies
11
Views
2K
Engineering Problem using Pulleys with Weight in Equilibrium
Replies
11
Views
2K
Engineering Dynamics help: Block on a wedge on an incline (frictionless surfaces)
Replies
6
Views
2K
Low Voltage level problem in STM32 system chip
Replies
3
Views
2K
Final project ideas using Noether's theorem in simulation class
Replies
4
Views
1K
Engineering Please help me make sense of this question in plumbing textbook
Replies
10
Views
2K
Engineering Solve 2nd Order RLC Circuit Problem | Get Answers Now
Replies
3
Views
2K
Identifying Pin Joints & Rollers - Structural Analysis Homework Help
Replies
20
Views
4K

Hot Threads

Recent Insights

Back
Top