214 prompts matching "Quiz: Sorting given quantities into scalars and vectors"
Spot my mistake: Overloading a socket, and what follows from it
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Let me explain: Lenz's law and the direction of an induced current
I have just studied Lenz's law and the direction of an induced current in my SS2 Physics c
Exam prep: The a.c. generator and how it works
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Spot my mistake: The d.c. generator and the commutator
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Let me explain: The field pattern around a straight wire and around a coil
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Worked example: The strength of an electromagnet and what affects it
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Practice set: The electric bell and how it operates
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Exam prep: The relay and the telephone earpiece
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Let me explain: Series and parallel circuits reviewed
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Worked example: Electrical safety and the cost of energy reviewed
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Exam prep: The simple d.c. motor and how it turns
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Spot my mistake: Confusing Fleming's left-hand rule with the right-hand rule
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Real-life Nigeria: Electric motors in Nigerian homes and industry
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Let me explain: Step-up and step-down transformers
I have just studied step-up and step-down transformers in my SS2 Physics class. Let me exp
Exam prep: Energy losses in a transformer, and how they are reduced
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Let me explain: Atomic number, mass number and isotopes
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Worked example: Writing the nuclide notation for a given atom
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Practice set: The Bohr model and electron energy levels
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Let me explain: The penetrating and ionising power of each radiation
I have just studied the penetrating and ionising power of each radiation in my SS2 Physics
Worked example: Writing an equation for alpha decay and for beta decay
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