05/08/2025
Basic Electrical Components and Their Equations
1. Resistor
Symbol: Zigzag line
Equations:
Current: I = V / R
Voltage: V = IR
Function: Limits current flow and dissipates electrical energy as heat.
2. Inductor
Symbol: Coil
Equations:
I = (1/L) ∫ V dt
V = L (dI/dt)
Function: Stores energy in a magnetic field and opposes changes in current.
3. Capacitor
Symbol: Two parallel lines
Equations:
I = C (dV/dt)
V = (1/C) ∫ I
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