458 prompts matching "Exam prep: Electric potential and potential difference"
Physics at work: Electrical machine manufacture
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WAEC prep: The advantages of fibre over copper cable
Act as a WAEC Physics examiner. I am in SS 3. Set me five exam-style questions on the adva
Teach me: Base quantities and their dimensions
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WAEC prep: Using dimensions to spot a wrong formula
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Quiz: The field pattern of a solenoid and how it resembles a bar magnet
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Let me explain: The right-hand grip rule and what it predicts
I have just studied the right-hand grip rule and what it predicts in my SS3 Physics class.
Worked example: Calculating the flux density at a point near a long straight wire
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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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Quiz: Fleming's left-hand rule and the direction of force
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Worked example: Calculating the force on a conductor placed at an angle to a field
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Spot my mistake: A solution using the wrong hand rule for an induced current
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Real-life Nigeria: The electric motor as an application of the motor effect
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Quiz: Peak value, root-mean-square value and their relationship
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Worked example: Finding peak voltage from a stated r.m.s. mains value
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Practice set: A purely resistive a.c. circuit and the phase between V and I
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Quiz: Capacitive reactance and how frequency changes it
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Let me explain: Phase relationships in an inductor and in a capacitor
I have just studied phase relationships in an inductor and in a capacitor in my SS3 Physic
Worked example: Impedance of a series RLC circuit from given values
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Practice set: Current and voltage in a series RLC circuit
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