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Chapter 4 - Alternating Current AC Circuits

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Quiz

Lesson 3: Analog Measuring Instruments – Galvanometer, Ammeter, Voltmeter and Ohmmeter — Lesson quiz

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1.
An ohmmeter pointer deflects to one-third (1/3) of its full scale when an unknown resistor Rx is connected. What is the value of Rx in terms of the internal resistance of the ohmmeter (R_(int))?
Rx = 2 R_(int)
Rx = 0.5 R_(int)
Rx = 4 R_(int)
Rx = 3 R_(int)
2.
A diver descends to a depth of 30 meters in seawater (density = 1030 kg/m3. If atmospheric pressure is 1.013 x 105 Pa and g = 9.8 m/s2, the total absolute pressure experienced by the diver is approximately:
1.01 x 105 Pa
6.06 x 105 Pa
4.04 x 105 Pa (approx. 4.0 atmospheres)
3.03 x 105 Pa
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