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Physics

Chapter 4 - Alternating Current AC Circuits

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Chapter 5 - Dual Nature of Wave and Particle

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Chapter 6 - Atomic Spectra and X-Rays

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Chapter 7 - Lasers and Principles

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Chapter 8 - Modern Electronics and Semiconductors

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Quiz

Lesson 1: The Hot-Wire Ammeter and Single Element AC Circuits — Lesson quiz

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1.
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
2.
In a hydraulic press, the ratio of the cross-sectional area of the large piston to that of the small piston is 50. If a force of 100 N is exerted on the small piston, the maximum force exerted by the large piston is:
2 N
50,000 N
5000 N
2500 N
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