A student is measuring the resistance per unit length of a resistance wire. He takes the following
Question:
A student is measuring the resistance per unit length of a resistance wire. He takes the following measurements.
a. Calculate the percentage uncertainty in the measurement of the current.
b. Calculate the value of the resistance per unit length of the wire.
c. Calculate the absolute uncertainty of the resistance per unit length of the wire.
Transcribed Image Text:
Quantity Value Uncertainty length of wire 80 mm +2% current in the wire 2.4 A +0.1 A potential difference across the wire 8.9 V +5%
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Related Book For
Cambridge International AS And A Level Physics Coursebook
ISBN: 9781108859035
3rd Edition
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
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