245 prompts matching "Finding refractive index from a pair of measured angles"
Quiz: Lenz's law and the direction of induced current
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Quiz: Total internal reflection as the basis of the fibre
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Quiz: Deriving the dimensions of a compound quantity
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Practice set: Flux density inside a solenoid from turns, length and current
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Exam timing: A timed run of magnetic field calculations
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Teach me: The interaction of a magnetic field with a current-carrying conductor
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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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Teach me: Alternating current and how it differs from direct current
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WAEC prep: Reading period and frequency from an a.c. waveform
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Spot my mistake: Adding resistance and reactance arithmetically instead of vectorially
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Real-life Nigeria: Tuning a radio receiver as an application of resonance
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Exam timing: A timed set of a.c. circuit calculations
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Worked example: The energy of a photon emitted in a stated transition
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WAEC prep: The stopping potential and how it is measured
Act as a WAEC Physics examiner. I am in SS 3. Set me five exam-style questions on the stop
Teach me: The wave-particle duality of light
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Worked example: The de Broglie wavelength of an electron at a stated speed
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Real-life Nigeria: Electronics in Nigerian phone repair workshops
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Worked example: The period of a satellite at a stated orbital radius
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WAEC prep: The advantages and limitations of satellite communication
Act as a WAEC Physics examiner. I am in SS 3. Set me five exam-style questions on the adva