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Faraday law
Quiz by nadine diab
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10 questions
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- Q1According to Faraday's law, the induced electromotive force in a closed loop is equal to the rate of change ofresistance of the looptemperature of the loopelectric current in the loopmagnetic flux through the loop30s
- Q2Faraday's law of electromagnetic induction states that a change in magnetic field induces a(n)emfmagnetic fieldtemperature changeresistanceelectric current30s
- Q3In Faraday's law of electromagnetic induction, the negative sign in the equation indicates the direction of the inducedtemperature changeemfcurrent flowmagnetic fieldresistance30s
- Q4When a magnetic field is changing in a loop of wire, the induced current in the wire flows in a direction that produces a magnetic field that opposes the original change. This is known asFaraday's LawOhm's LawAmpere's LawLenz's LawCoulomb's Law30s
- Q5According to Faraday's law of electromagnetic induction, the magnitude of the induced electromotive force is directly proportional to the rate of change ofvoltagemagnetic fluxelectric currentcurrent densityresistance30s
- Q6When a coil is rotated in a magnetic field, the induced emf is highest when the coil is at45 degrees to the magnetic field lines0 degrees to the magnetic field lines90 degrees to the magnetic field lines180 degrees to the magnetic field lines30s
- Q7Which of the following factors affects the magnitude of the induced electromotive force in a coil according to Faraday's law of electromagnetic induction?Temperature of the coilMaterial of the coilResistance of the coilRate of change of magnetic fieldThickness of the coil30s
- Q8When a magnetic field is directed into a closed loop of wire, according to Faraday's law, the induced current in the wire will flow in a direction to create a magnetic field thatenhances the original magnetic fieldhas no effect on the original magnetic fieldopposes the original magnetic fielddoubles the original magnetic fieldcreates a perpendicular magnetic field30s
- Q9In Faraday's law of electromagnetic induction, the induced electromotive force (emf) in a closed loop is directly proportional to the number ofturns in the loopcapacitors in the loopmagnets in the loopbatteries in the loopresistors in the loop30s
- Q10In Faraday's law of electromagnetic induction, the negative sign in the induced emf equation indicates that the induced current flows in a direction to oppose the change inresistanceelectric fieldmagnetic fluxcurrentvoltage30s