# Recent questions tagged emf

The greatest induced EMF will occur in a straight wire moving at constant speed through a uniform magnetic field when the angle between the direction of the wire's motion and the direction of the magnetic field isThe greatest induced EMF will occur in a straight wire moving at constant speed through a uniform magnetic field when the angle between the direction ...
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The potential drop between the terminals of a battery is equal to the battery's EMF when:
The potential drop between the terminals of a battery is equal to the battery's EMF when:The potential drop between the terminals of a battery is equal to the battery's EMF when: w) no current is drawn from the battery x) a very large cu ...
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An alternating current can induce voltage because it has
An alternating current can induce voltage because it hasAn alternating current can induce voltage because it has A) ripple value B) varying magnetic field C) weaker magnetic field than direct current D) hi ...
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How many turns of wire must a coil have in order to induce a voltage of 10.5 volts when exposed to a changing magnetic flux with a rate of 0.0075 Wb/s?
How many turns of wire must a coil have in order to induce a voltage of 10.5 volts when exposed to a changing magnetic flux with a rate of 0.0075 Wb/s?How many turns of wire must a coil have in order to induce a voltage of 10.5 volts when exposed to a changing magnetic flux with a rate of 0.0075 Wb/s ...
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The magnetic flux through a coil containing 50 loops changes from 30 Wb to –30 Wb in 0.42 seconds. What is the voltage induced in the coil?
The magnetic flux through a coil containing 50 loops changes from 30 Wb to –30 Wb in 0.42 seconds. What is the voltage induced in the coil?The magnetic flux through a coil containing 50 loops changes from 30 Wb to –30 Wb in 0.42 seconds. What is the voltage induced in the coil? ...
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what is e.m.f and terminal voltage of a cell?how are they related to internal resistance?
what is e.m.f and terminal voltage of a cell?how are they related to internal resistance?what is e.m.f and terminal voltage of a cell?how are they related to internal resistance? ...
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A circular coil is placed inside a magnetic field and rotated clockwise to induce an emf. Which ONE of the following changes will increase the induced emf?
A circular coil is placed inside a magnetic field and rotated clockwise to induce an emf. Which ONE of the following changes will increase the induced emf?A circular coil is placed inside a magnetic field and rotated clockwise to induce an emf. Which ONE of the following changes will increase the induced ...
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Explain in words, the meaning of an emf of 12 V.