MCAT Physics Question 89: Answer and Explanation
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Question: 89
14. Each of the resistors shown carries an individual resistance of 4 Ω. Assuming negligible resistance in the wire, what is the overall resistance of the circuit?
- A. 16 Ω
- B. 8 Ω
- C. 4 Ω
- D. 3 Ω
Correct Answer: D
Explanation:
The resistance of the three resistors wired in series is equal to the sum of the individual resistances (12 ?). This means that the circuit essentially contains a 12 ? resistor and a 4 ? resistor. To determine the overall resistance of this system, use the formula
