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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 — Picture questions (exam style)

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1.
A rod 0.3 m long moves right at 5 m/s on rails joined by 1 Ω in a 0.2 T field into the page (figure). Which option is correct?
A rod 0.3 m long moves right at 5 m/s on rails joined by 1 Ω in a 0.2 T field into the page (figure). Which option is correct?
downwards in the rod, I = 0.300 A, force for constant speed = 0.300 N
downwards in the rod, I = 1.00 A, force for constant speed = 0.0900 N
upwards in the rod, I = 0.300 A, force for constant speed = 0.0180 N
downwards in the rod, I = 0.300 A, force for constant speed = 0.0900 N