436 prompts matching "Calculating resistance from voltage and current"
Practice set: Current and voltage in a series RLC circuit
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Practice set: Flux density inside a solenoid from turns, length and current
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Teach me: Alternating current and how it differs from direct current
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Worked example: Current gain of a transistor from given base and collector currents
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Worked example: Resistance of a wire from its dimensions and resistivity
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Worked example: The mass deposited from a stated current and time
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Practice set: Reading peak voltage from a CRO screen
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Quiz: Convection currents and where they arise
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Practice set: Series and parallel resistance problems
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Quiz: Lenz's law and the direction of induced current
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Spot my mistake: A solution using the wrong hand rule for an induced current
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Worked example: Finding peak voltage from a stated r.m.s. mains value
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WAEC prep: Reading period and frequency from an a.c. waveform
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Spot my mistake: Adding resistance and reactance arithmetically instead of vectorially
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WAEC prep: A half-paper drawn from the magnetic field and a.c. topics
Act as a WAEC Physics examiner. I am in SS 3. Set me five exam-style questions on a half-p
Worked example: Finding frequency from a trace and the time-base setting
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Worked example: The minimum wavelength from a stated tube voltage
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Teach me: Reading a circuit diagram and building from it
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WAEC prep: A half-paper drawn from the electronics and nuclear topics
Act as a WAEC Physics examiner. I am in SS 3. Set me five exam-style questions on a half-p
Worked example: Calculating percentage error from repeated readings
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