501 prompts matching "Applying Ohm's law to find an unknown quantity"
Worked example: Finding peak voltage from a stated r.m.s. mains value
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Practice set: Fault-finding in a circuit that will not work
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Practice set: Combined gas law problems
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Spot my mistake: A gas law calculation left in degrees Celsius
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Exam timing: A timed gas laws problem set
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Teach me: Faraday's law of electromagnetic induction
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Teach me: The magnetic field around a straight current-carrying conductor
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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.
Practice set: Flux density inside a solenoid from turns, length and current
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Real-life Nigeria: The magnetic field in an electric bell and a relay
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Teach me: The interaction of a magnetic field with a current-carrying conductor
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Quiz: Fleming's left-hand rule and the direction of force
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Spot my mistake: A solution using the wrong hand rule for an induced current
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Teach me: Alternating current and how it differs from direct current
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Quiz: Peak value, root-mean-square value and their relationship
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Let me explain: Why a.c. is described by an r.m.s. rather than an average value
I have just studied why a.c. is described by an r.m.s. rather than an average value in my
Practice set: A purely resistive a.c. circuit and the phase between V and I
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Real-life Nigeria: Why Nigerian mains is quoted as 220 volts
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Teach me: Inductive reactance and what it depends on
You are my personal SS3 Physics tutor. Teach me inductive reactance and what it depends on