501 prompts matching "Optical fibres and the periscope"
Quiz: Magnetic domains and how magnetisation occurs
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Practice set: Problems on magnetisation and demagnetisation
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Real-life Nigeria: Magnets in loudspeakers and electric generators
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Real-life Nigeria: Neon signs and fluorescent tubes
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Real-life Nigeria: Fibre backbones carrying Nigerian internet traffic
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Quiz: Stimulated emission and population inversion
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Let me explain: Coherence, monochromaticity and collimation
I have just studied coherence, monochromaticity and collimation in my SS3 Physics class. L
Practice set: Problems on laser output and photon count
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Real-life Nigeria: Lasers in surgery, printing and barcode scanning
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Physics at work: Laser and photonics work
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Quiz: Deriving the dimensions of a compound quantity
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Physics at work: Engineering calculation and quality control
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Worked example: Thrust from a stated exhaust speed and mass flow rate
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Spot my mistake: The claim that a rocket pushes against the air
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Real-life Nigeria: Nigeria's satellite launches and space agency work
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Spot my mistake: The subject combinations an engineering course in Nigeria requires
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Worked example: Calculating the flux density at a point near a long straight wire
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Let me explain: The force on a moving charge in a magnetic field
I have just studied the force on a moving charge in a magnetic field in my SS3 Physics cla
Worked example: Calculating the force on a conductor placed at an angle to a field
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Real-life Nigeria: The electric motor as an application of the motor effect
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