DC Circuits
Ohm's law, power and heating, and resistor networks from simple series pairs to bridges and real batteries.
Problems
- Power Used by a Resistor
- Two Series Resistors
- Power at 3 A
- Resistance from a Bulb's Rating
- Heat in Thirty Seconds
- Two Resistors in Series
- A Small Resistor on 12 V
- Heat from a Resistor in One Minute
- Power in a 20 Ω Resistor
- Power in C Compared with A
- Energy in Five Minutes
- Power in One Parallel Branch
- When C Matches A and B
- Heat in One Branch of a Parallel Pair
- Two Resistors in Series
- Power in the Series Resistor
- A Real Battery
- Doubling the Current
- A Battery with Internal Resistance
- How Long to Warm the Water?
- Removing Resistor B
- Current Through the 12 Ω Resistor
- Y to Z with Small R
- Current in the Outer 70 Ω
- Resistance Between X and Y
- Power in the 4 Ω Resistor
- X to Z
- Current Through the 3 Ω Resistor
- Equivalent Resistance
- Current in the 30 Ω Resistor
- Voltage Across the 80 Ω
- A Bigger Middle Resistor
- If the 6 Ω Resistor Burns Out