Question Detail

PHY 102 Last Minute Prep Objective Question
Take CBT

Question

Three resistors (2Ω, 4Ω, 5Ω) in parallel across 20V. Find total current.
Options
A 9.8 A
B 2 A
C 19 A
Correct Answer
D 1.9 A
Correct Answer

Option C is the correct answer.

Detailed Explanation

1/R_eq = 1/2 + 1/4 + 1/5 = 10/20 + 5/20 + 4/20 = 19/20. R_eq = 20/19 Ω. I = V/R_eq = 20 × 19/20 = 19A.

Hint

Find equivalent resistance, then use Ohm's law.

Question Info

Course: PHY 102
Topic: Last Minute Prep
Type: Objective
Difficulty: Not specified
Question 1797 of 1819
Previous Course Details Next