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What induced voltage opposes the motion that causes it according to .?
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What is a force that opposes is most often causes something to stop moving?
Force
What causes friction that opposes wind?
fluid friction or drag pushes the opposite direction the wnd is trying to flow.
Is voltage the force that causes motion?
no, the force that causes motion is called inertia, while yes voltage is needed to make things work, it is also a unit of measurement for electricity.
What is the electrical pressure that causes electrons to flow?
voltage, breh
A what difference is the what that causes charges to move?
. . . potential or voltage . . . . . . pressure
What are the cause of induced emf?
A change in current causes a voltage to be induced into an inductive circuit, which opposes that change of current. This is because the change in current is accompanied by a change in magnetic flux which 'cuts' the conductors and induces a voltage into them.
Why lenz's law can be applied only to closed loops?
Lenz's law and Faraday's law of Induction.The induced current causes a magnetic field according to Ampere's law, which itself has a flux through the closed loop. According to Lenz's law, the direction of the induced current and which results in the induced magnetic flux opposes the initial magnetic flux.
Who formulated a law for determining the direction of the induced current in a conductor?
There is no such thing as an 'induced current'. What is 'induced' is a voltage. If the conductor into which that voltage is induced forms a complete circuit, then a current will result. But it's the voltage that's induced, NOT the current! The direction of the induced voltage is explained by Lenz's Law which, in simple terms, tells us that the direction of the inducted voltage is always such that it will oppose the change in current that causes it. So the induced voltage will oppose any increase in current, but will act in the same direction as a reduction in current.
Difference between back EMF and induced EMF?
An induced electromotive force (emf) is an induced voltage. Voltage (emf) causes current flow, and this induced voltage will cause a current that is called the induced current.We might also add that the induced current will cause a magnetic field to expand about the current path, and this field will "sweep" the conductor. The sweeping of the conductor by that expanding magnetic field will set up an emf that will oppose the emf that was creating it.CommentTechnically, there is no such thing as an 'induced current'. It is voltage that is induced. Any current flows as a result of that induced voltage being applied to a load. But that current is certainly NOT induced!
How the process of change in magnetic flux causes induced emf?
According to Faraday's laws of electromagnetic induction, whenever a varving flux link with a conductor an emf is induced.
What rule should you use in order to determine the direction of induced EMF in a coil?
The direction of an induced voltage is such that it always acts to oppose any change of current which causes it.So, for example, during the first quarter-cycle of a sine wave, when the current is increasing, the induced voltage acts oppose that change (increase) -in other words, it acts in the opposite direction to that current. During the second quarter-cycle of a sine wave, when the current is decreasing, the induced voltage again acts opposethat decrease that change (decrease) -in other words, it acts in the same direction to that current -trying to sustain that current.
Can DC be used for transformer?
Basis of transformer is change in current. Whenever current flows it causes magnetic field. Current flow in primary coil causes magnetic field around secondary. Since current is changing as in the case of AC, magnetic filed also changes. As per Faraday's law change in magnetic field causes induced voltage at secondary coil. In case of DC there wont be any change in current, thus no change in magnetic field leading to no induced voltage.
What is a force that opposes is most often causes something to stop moving?
Force
How does step down transfomers work?
A transformer has two coils of wire wound round an iron core. An ac voltage on one coil produces a magnetic field in the core. The magnetic field causes a voltage to be induced in the second coil. A step-down transformer has fewer wire turns in the second coil, therefore the output voltage is less than the input voltage.
Does excessive alcohol consumption cause sterss induced acute gastric enteritis?
No, it causes alcohol-induced gastric enteritis.
What causes Russell's sign?
It is caused by self-induced vomiting
What type of force opposes motion and causes objects to slow down?
Friction forces.
