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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 2: Magnetic Force on Currents, Torque and Magnetic Dipole Moment — Picture questions (exam style)

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1.
Two parallel wires attract with force F₁. The current in wire 1 is multiplied by 3, in wire 2 by 1, and their separation by 4 (figure). What is F₂ : F₁?
Two parallel wires attract with force F₁. The current in wire 1 is multiplied by 3, in wire 2 by 1, and their separation by 4 (figure). What is F₂ : F₁?
F₂ : F₁ = 16 : 9
F₂ : F₁ = 6 : 4
F₂ : F₁ = 3 : 8
F₂ : F₁ = 3 : 4
2.
Two parallel wires attract with force F₁. The current in wire 1 is multiplied by 1, in wire 2 by 3, and their separation by 1 (figure). What is F₂ : F₁?
Two parallel wires attract with force F₁. The current in wire 1 is multiplied by 1, in wire 2 by 3, and their separation by 1 (figure). What is F₂ : F₁?
F₂ : F₁ = 9 : 1
F₂ : F₁ = 1 : 3
F₂ : F₁ = 3 : 1
F₂ : F₁ = 6 : 1
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