Contents
What makes a valid circuit?
SOL’N: a) Circuit is valid. Current sources may have whatever voltage is necessary in order to produce their current, so Kirchhoff’s law saying all voltage loops must sum to zero can be satisfied. That allows the current law to be satisfied, and the circuit is valid.
What are elements of a circuit?
Most of the circuit components in the model are common electrical elements such as resistors, capacitors, and inductors….Common Electrical Components.
| Component | Relationship of Current and Voltage | Impedance |
|---|---|---|
| Resistor | E = IR | Z = R |
| Inductor | E = L di/dt | Z = jωL |
| Capacitor | I = C dE/dt | Z = 1/(jωC) |
How to solve practice problems in circuit analysis?
Practice Problems: A Review of Basic Circuit Analysis Click here to see the solutions. 1. (easy) Explain, using the concepts discussed in the previous lecture, how the drift velocity of charges in a circuit is small in comparison to the speed of the signal that causes them to move. 2. (moderate) If 5×1016 electrons pass a point in
How can you tell if there is a problem in a circuit?
Based on this one measurement, we are able to determine that there is definitely a problem in the circuit somewhere on the left-hand side (from points C and H, left). The exact nature of the problem is unknown, but there is definitely a problem of some nature in that half of the circuit.
Why do students have difficulty troubleshooting circuits?
It has been my experience that students who experience difficulty troubleshooting circuits in general usually experience difficulty troubleshooting this simple circuit in particular. Although the circuit itself couldn’t be simpler, the fundamental concept of voltage as a quantity measurable only between 2 points is confusing for many.
What does the behavior of this circuit tell us about electrical continuity?
This question is an important one in the students’ process of learning troubleshooting. Emphasize the importance of inductive thinking: deriving general principles from specific instances. What does the behavior of this circuit tell us about electrical continuity?