501 prompts matching "What a transformer does, and why it is needed"
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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Worked example: Calculating the flux density at a point near a long straight wire
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WAEC prep: Magnetic flux and flux linkage in a coil
Act as a WAEC Physics examiner. I am in SS 3. Set me five exam-style questions on magnetic
WAEC prep: Reading period and frequency from an a.c. waveform
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Worked example: Impedance of a series RLC circuit from given values
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Worked example: The energy of a photon emitted in a stated transition
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WAEC prep: The p-n junction and the depletion region
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Worked example: The period of a satellite at a stated orbital radius
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WAEC prep: A half-paper drawn from the magnetic field and a.c. topics
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WAEC prep: The deflection of an electron beam by electric and magnetic fields
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WAEC prep: The uses and dangers of X-rays
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Worked example: Tracing current through a built circuit
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WAEC prep: The advantages and drawbacks of each source
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Practice set: A mixed problem set spanning electronics, nuclear physics and X-rays
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WAEC prep: A half-paper drawn from the electronics and nuclear topics
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Practice set: Mixed mechanics problems on force and energy
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Practice set: Mixed problems on expansion and heat transfer
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Worked example: A lens formula problem with sign convention
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Practice set: Mixed problems on waves and optics
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