501 prompts matching "Using the wrong sign convention in a lens calculation"
Worked example: Finding peak voltage from a stated r.m.s. mains value
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WAEC prep: Reading period and frequency from an a.c. waveform
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Real-life Nigeria: Why Nigerian mains is quoted as 220 volts
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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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Real-life Nigeria: The sodium street lamp and the light it emits
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Worked example: Einstein's photoelectric equation applied to given data
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Real-life Nigeria: Photocells in automatic doors and light meters
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Worked example: The de Broglie wavelength of an electron at a stated speed
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Real-life Nigeria: The electron microscope and why it outresolves a light one
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Worked example: Reading a resistor colour code and checking it
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WAEC prep: The p-n junction and the depletion region
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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
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Real-life Nigeria: NigComSat and satellite services in Nigeria
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WAEC prep: A half-paper drawn from the magnetic field and a.c. topics
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Real-life Nigeria: Where this term's physics shows up in Nigerian technology
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Worked example: Current gain of a transistor from given base and collector currents
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WAEC prep: The transistor as a switch
Act as a WAEC Physics examiner. I am in SS 3. Set me five exam-style questions on the tran