501 prompts matching "Let me explain: Potential difference across components joined in parallel"
Practice set: Flux density inside a solenoid from turns, length and current
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Spot my mistake: A solution that confuses field strength with flux
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Real-life Nigeria: The magnetic field in an electric bell and a relay
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Worked example: Calculating the force on a conductor placed at an angle to a field
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Practice set: The torque on a rectangular coil in a uniform 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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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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Spot my mistake: A calculation that uses peak current where r.m.s. was required
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Real-life Nigeria: Why Nigerian mains is quoted as 220 volts
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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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Real-life Nigeria: Tuning a radio receiver as an application of resonance
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Worked example: The energy of a photon emitted in a stated transition
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Practice set: Energy level diagrams and the transitions on them
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Spot my mistake: A solution that uses the wrong sign for a transition energy
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Real-life Nigeria: The sodium street lamp and the light it emits
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Worked example: Einstein's photoelectric equation applied to given data
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Practice set: Maximum kinetic energy of emitted electrons
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