Q.

The resistance of a metal is given by R = V/I, where V is potential difference and I is the current. In a circuit, the potential difference across resistance is V= (8 ± 0.5) V and current in resistance, I = (4 ± 0.2) A. What is the value of resistance with its percentage error?

Moderate

Unlock the Full Solution and Master the Concept

Get a detailed solution and exclusive access to our masterclass to ensure you never miss a concept

By Expert Faculty of Sri Chaitanya

a

(2±5.6%) Ω

b

(2±0.7%) Ω

c

(2±35%) Ω

d

(2±11.25%) Ω

answer is 4.

(Detailed Solution Below)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

R=VI=84=2 ΩΔRR×100=ΔVV×100+ΔII×100=0.58×100+0.24×100=11.25%⇒R=(2±11.25%) Ω

ctaimg

ctaimg

Choose your Grade and Exam

Connect with our

Expert Counsellors

access to India's best teachers with a record of producing top rankers year on year.

+91

We will send a verification code via OTP.