Page 820 - Basic Electrical Engineering
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Thevenin’s equivalent circuit of Fig. 11.9 is represented as shown in Fig.
11.11.
Figure 11.11
The voltage measured by the voltmeter as a consequence of its internal
resistance is calculated as
Loading Error
Example 11.3 Calculate the error in the measured value of voltage across
terminals A and B as shown in Fig. 11.10, using a voltmeter having an
internal resistance of 8.5 kΩ. What would be the error if the voltmeter
internal resistance is 2 kΩ?
Figure 11.12 Loading effect illustrated
Solution:
