OpenStax University Physics/E&M/Direct-Current Circuits

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(Vol. 2):    5:Electric Charges and Fields    6:Gauss's Law    7:Electric Potential    8:Capacitance    9:Current and Resistance    10:Direct-Current Circuits    11:Magnetic Forces and Fields    12:Sources of Magnetic Fields    13:Electromagnetic Induction    14:Inductance    15:Alternating-Current Circuits    16:Electromagnetic Waves


Chapter 10[edit | edit source]

Direct-Current Circuits[edit | edit source]

Terminal voltage where is the internal resistance and is the electromotive force.
▭ Resistors in series and parallel: ▭ 
▭ Kirchoff's rules. Loop: Junction:

▭  ▭  where is internal resistance of each voltage source.
▭ Charging an RC (resistor-capacitor) circuit: and where is RC time, and .
▭ Discharging an RC circuit: and

For quiz at QB/d_cp2.10[edit | edit source]

where =internal resistance and =emf.


Kirchhoff Junction: and Loop:

Charging an RC (resistor-capacitor) circuit: and where is RC time, and .

Discharging an RC circuit: and