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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 Quiz: Hydrogen Atomic Emission Spectrum and Production of X-Rays

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1.
The volume expansion coefficient at constant pressure (alpha_v) of an ideal gas is physically measured using:
Joly's bulb apparatus or Charles's apparatus with a dry mercury droplet index
A torsion balance
A venturi meter and manometer
A hydrometer
2.
According to the Egyptian Physics syllabus, what is the valid physical deduction for: Ohm's Law for a Closed Circuit: V = VB - I*r?
The terminal voltage always exceeds the EMF when supplying current
The current in a series circuit depends only on the external resistance
The terminal voltage of a discharging battery is strictly less than its electromotive force (VB) by the internal potential drop (I*r)
The internal resistance r consumes reactive power without heat generation
3.
According to the Egyptian Physics syllabus, what is the valid physical deduction for: Faraday's Law and Lenz's Rule in Electromagnetic Induction?
Lenz's rule represents a violation of the law of conservation of energy
Self-inductance L is measured in Farads and depends only on current intensity
Induced EMF is maximum when the magnetic flux through the coil is at its peak value and constant
The magnitude of induced EMF is directly proportional to the rate of change of magnetic flux (emf = -N ΔΦ/Δt), and the induced current flows in such a direction as to oppose the change causing it
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