Question

Question 57:
According to Joule's law of
heating, heat produced H = 1² Rt,
where I is current, R is
resistance and t is time. If the
errors in the measurement of I,
Rand t are 3%, 4% and 6%
respectively then error in the
measurement of His​

Answer 1

Answer:

Heat produced H=i

2

RT

logH=2logi+logR+logT

H

ΔH

=

i

2Δi

+

R

ΔR

+

R

ΔT

⇒ Error in H=2×3+4+6=16%.

Answer By