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Question

The resistance R=VI, where V=100±5.0V and I=10±0.2A. What is the total error in R?


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Solution

Step 1: Given Data

Voltage, V=100±5.0V

Current, I=10±0.2A

Step 2: Formula Used

RR=±VV+II

Step 3: Calculating the error in the resistance

RR=±VV+IIRR=±5100+0.210RR=±0.05+0.02RR=±0.07

The percentage error will be

RR×100=0.07×100RR×100=7%

The total percentage error in the resistance will be 7%.


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