Answer: Resistance increases with temperature.
- A Resistance decreases with temperature
- B Resistance is independent of temperature
- C Resistance increases with temperature
- D Resistance is zero at 0 degrees C
Correct answer: C. Resistance increases with temperature
Explanation: Positive alpha: R = R0(1 + alpha x delta T). Resistance increases with temperature for metals.
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.