Lecture 4 Flashcards
1
Q
What is Kirchhoff’s Current Law (KCL)?
A
The sum of currents entering a node is equal to the sum of currents leaving that node.
2
Q
What is Kirchhoff’s Voltage Law (KVL)?
A
The sum of voltage drops around any closed path (loop) must be equal to zero.
3
Q
List the steps for nodal analysis.
A
- Identify nodes with three or more branches
- Select a reference node (ground)
- Apply KCL to non-reference nodes
- Solve simultaneous equations
- Determine currents in each branch
4
Q
How to check if a resistor is suitable for use in a circuit?
A
Calculate the power using P=I²R and compare it to the resistor’s power rating.
5
Q
What is the formula for voltage divider?
A
V₁=Vᵢₙ x (R₁/R₁+R₂)
6
Q
What is the formula for current divider?
A
I₁=Iᵢₙ x (R₁/R₁+R₂)
