Answer: Decreases.
- A Increases
- B Decreases
- C Stays same
- D Depends on values
Correct answer: B. Decreases
Explanation: Adding resistors in parallel always decreases total resistance. More paths = easier current flow.
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.