Question

the current passing through a resisitor is I=5±0.1A and the resistance of the resistor is R=20±0.5ohm .the electrical power measured in wattt ,supplied to the resistor is given by P=I²R .find the absolute uncertainity for electrical power

Answer 1

Answer:

uncertainty in I 0.1/5

uncertainty in R 0.5/20

therefore , uncertainty in p = 2*uncer.. in I+ uncer..in r

Explanation:

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