Question

The heat generated in a circuit is dependent upon the resistance, current and time for which the current is flown. If the error in measuring the above are 1%, 2% and 1% respectively, then maximum error in measuring the heat is
A. 0.08
B. 0.06
C. 0.18
D. 0.12

Answer 1

Correct Answer - B
`H=i^(2) Rt`
`:.` % error in H=2(%error in i) +(%error in R) +(%error in t)
`=2xx2+1+1xx1=6%`