Answer: One voltage source with series resistance.
- A One voltage source with series resistance
- B One current source with parallel resistance
- C Two sources in series
- D Maximum power source
Correct answer: A. One voltage source with series resistance
Explanation: Thevenin theorem: any linear circuit with sources and resistors can be replaced by a single EMF source (Vth) in series with resistance (Rth).
In series, the same current flows through both resistors; in parallel, the current splits between branches and the voltage across each resistor is the same.
Concept context
Ohm's law, resistors, Kirchhoff's laws, Wheatstone bridge, and cells.