Question Detail

PHY 102 Current Electricity Objective Question

Question

When resistors R1, R2, and R3 are connected in series, what is the formula for their equivalent resistance (Req)?
Options
A Req = 1/R1 + 1/R2 + 1/R3
B Req = R1 + R2 + R3
Correct Answer
C Req = (R1 * R2 * R3) / (R1 + R2 + R3)
D Req = R1 - R2 - R3
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 7 states, "The equivalent resistance of a series combination is the sum of the individual resistances: Req = R1 + R2 + R3 + ..."

Hint

In a series circuit, resistances add up directly.

Question Info