27. Resistors & DC Circuits
Solving Resistor Circuits
8:40 minutes
Problem 100
Textbook Question
Textbook QuestionA typical voltmeter has an internal resistance of 10 MΩ and can only measure potential differences of up to several hundred volts. Figure 26–93 shows the design of a probe to measure a very high voltage V using a voltmeter. If you want the voltmeter to read 50 V when V = 50 kV , what value R should be used in this probe?
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