Two resistors of 12 and 6 ohms are connected in parallel. What is the equivalent resistance?

Answer and explanation

Correct answer: A. 4 ohms

  1. Step 1: R = ab/(a + b).
  2. Step 2: R = 12 x 6 / 18 = 4.
Answer
4 ohms.

Practise more Physics: Mechanics, Electricity and Waves.

Free questions with an explanation for every one, and full timed FUVEST (University of São Paulo Entrance Exam) mock tests.