Index for
Chapter 16
Circuits

1. Electric Current

• current
• amperes
• conventional current
• Current (\(I\)) measured in A
• In a steady current, the total current into an object is equal to the total current out of it.
• In a wire, current moves towards lower potential.
  "Current flows downhill."

2. Batteries

• batteries
• emf
• schematic symbol
• power supplies

3. Resistors

• resistance
• resistors
• ohm's law
• \(R={\Delta V\over I}\)

4. Power

• watts
• Power (\(P\)) measured in watts (W)
• \(P=I\Delta V\)
• \(P=I^2R \quad{\it and }\quad P={(\Delta V)^2\over R}\)

5. Junction Rule

• junction
• kirchhoff's junction rule
• Current in = current out

6. Loop Rule

• kirchhoff loop rule
• tally method
• circuit element
• The total change in potential around a closed loop in a circuit is zero.

7. Solving Circuits

8. Equivalent Resistance

• terminals
• equivalent resistance
• series
• parallel
• \(R_{eq} = {\Delta V\over I}\)
• \(R_{eq} = R_1 + R_2 + \dots\)
  for resistors in series
• \(\frac1{R_{eq}} = \frac1{R_1} + \frac1{R_2} + \dots\)
  (for resistors in parallel)

9. Resistance Reduction

• resistance reduction

10. Internal Resistance