Question Detail

PHY 102 Current Electricity Objective Question
Take CBT

Question

The equivalent resistance (Req) of resistors R1, R2, and R3 connected in parallel is given by which formula?
Options
A R<sub>eq</sub> = R<sub>1</sub> + R<sub>2</sub> + R<sub>3</sub>
B R<sub>eq</sub> = R<sub>1</sub>R<sub>2</sub>R<sub>3</sub>
C 1/R<sub>eq</sub> = 1/R<sub>1</sub> + 1/R<sub>2</sub> + 1/R<sub>3</sub>
Correct Answer
D R<sub>eq</sub> = (R<sub>1</sub> + R<sub>2</sub> + R<sub>3</sub>)/3
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 8 provides the formula for equivalent resistance in a parallel combination: "1/Req = 1/R1 + 1/R2 + 1/R3 + ..."

Hint

For parallel resistors, you sum the reciprocals of individual resistances to find the reciprocal of the equivalent resistance.

Question Info

Course: PHY 102
Topic: Current Electricity
Type: Objective
Difficulty: Not specified
Question 674 of 1819
Previous Course Details Next