Lessons

Eamcet Physics
1 st Year : Unit 1.3 ( Physical World & Measurements) - Measurements & Errors

1 / 33

Q.

The heat generated in a circuit depends on resistance(R), current (I) and time of flow(t). If maximum errors in above are 1%, 0.5% and 1% respectively. Error in measurement of power is

View Answer

Correct choice: A

Explanation:

P = i2R
% error in P= 2(% error in i) + (% error in R) 2(0.5)% +  1%= 2%
1 / 33