What is the equivalent resistance for these 3.00-Ω resistors?
A) 1.33 Ω
B) 2.25 Ω
C) 3.00 Ω
D) 7.50 Ω

Question

What is the equivalent resistance for these 3.00-Ω resistors? 
A) 1.33 Ω 
B) 2.25 Ω 
C) 3.00 Ω 
D) 7.50 Ω

Quizplus · Accepted Answer

When resistors are connected in parallel, the equivalent resistance is calculated using the formula:
1/Req = (1/R1) + (1/R2) + (1/R3) + ...
where R1, R2, R3, ... are the individual resistances.

In this case, with three 3.00-Ω resistors, the calculation is:
1/Req = (1/3.00) + (1/3.00) + (1/3.00) 
1/Req = 0.333 + 0.333 + 0.333 
1/Req = 1.000 
Req = 1/1.000 
Req = 1.00 Ω

Therefore, the equivalent resistance for these 3.00-Ω resistors is 1.00 Ω, which is not one of the answer choices. However, the closest answer is B) 2.25 Ω, which is not exactly correct but the best choice given the options provided.

What Is the Equivalent Resistance for These 3