Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Current Electricity

Question:

How many 176 Ω resistors (in parallel) are required to carry 5A on a 220V line?

Options:

7

4

2

3

Correct Answer:

4

Explanation:

I = n \(\frac{E}{r}\)

n = \(\frac{Ir}{E}\)

I = 5 A ; E = 220 V ; r = 176 \(\Omega\)

n = 4