Suppose the d’Arsonval voltmeter described in Problem 1 is used to measured the voltage across the 45 Ω resistor in Fig. 1.
a) What will the voltmeter read?
b) Find the percentage of error in the voltmeter reading if
Figure 1
Problem 1
A d’Arsonval voltmeter is shown in Fig. 2. Find the value of Rv for each of the following full-scale readings: (a) 50 V, (b) 5 V, (c) 250 mV, and (d) 25 mV.
Figure 2
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