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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: Faradays Law of Induction, Lenzs Law and EMF in a Moving Wire — Lesson quiz

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1.
A copper wire of length 0.5 m moves with a constant velocity of 4 m/s perpendicular to a uniform magnetic field of flux density 0.2 Tesla. What is the magnitude of the induced EMF?
0.40 V
0.80 V
0.10 V
0.20 V
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
5000 N
50,000 N
2500 N
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