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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 4: The Electric Transformer and Electric Motor (DC Motor) — Lesson quiz

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1.
Why does an electric transformer fail to operate when connected to a 24 V DC accumulator battery?
The accumulator voltage is too high
The DC battery produces a constant magnetic flux with zero time rate of change
Direct current causes immediate short circuiting
Soft iron does not conduct magnetic flux with DC
2.
Pascal's principle states that when pressure is applied to an enclosed, incompressible fluid, it is transmitted:
Undiminished to every portion of the fluid and to the walls of the containing vessel
With an exponential decay as distance increases
Only downwards towards the bottom of the vessel
Strictly to compressible gases
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