Question

what is the voltage this voltmeter is measuring?
be sure your answer has a reasonable number of decimal places.
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Explanation:

Step1: Determine the scale range and division

The scale ranges from - 0.1 to 0. There are 10 divisions between - 0.1 and 0. So the value of each division is $\frac{0 - (-0.1)}{10}=0.01$.

Step2: Count the number of divisions from - 0.1 to the pointer

The pointer is 4 divisions above - 0.1.

Step3: Calculate the voltage

The voltage $V=-0.1+(4\times0.01)$.

$$
LATEXBLOCK0
$$

Answer:

$-0.06$