501 prompts matching "What a transformer does, and why it is needed"
Let me explain: Checking an equation for dimensional consistency
I have just studied checking an equation for dimensional consistency in my SS3 Physics cla
Exam timing: A timed dimensional analysis set
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Let me explain: Why a rocket works in the vacuum of space
I have just studied why a rocket works in the vacuum of space in my SS3 Physics class. Let
Real-life Nigeria: The magnetic field in an electric bell and a relay
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Quiz: Fleming's left-hand rule and the direction of force
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Quiz: Peak value, root-mean-square value and their relationship
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Spot my mistake: A calculation that uses peak current where r.m.s. was required
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Exam timing: A timed set of a.c. circuit calculations
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Let me explain: How an electron transition produces a spectral line
I have just studied how an electron transition produces a spectral line in my SS3 Physics
Quiz: Threshold frequency and work function
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Practice set: Maximum kinetic energy of emitted electrons
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Spot my mistake: A solution that treats light purely as a wave here
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Real-life Nigeria: Photocells in automatic doors and light meters
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Spot my mistake: A calculation using the wrong mass in the de Broglie formula
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Quiz: Intrinsic and extrinsic semiconductors
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Practice set: Identifying components in a simple circuit diagram
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Quiz: Uplink and downlink frequencies
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Quiz: Rapid recall across a.c. circuits
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Real-life Nigeria: Where this term's physics shows up in Nigerian technology
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Quiz: The electron gun and the deflecting plates
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