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hackhard
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Is the work done by a constant voltage source positive or negative when current is opposite to emf?
when current enters positive terminal of voltage source, voltage source charges up , so it gains energy , its power(energy derivative) is positiveDale said:Negative
Work done on the source is positive. You asked about work done by the source, which is negative.hackhard said:when current enters positive terminal of voltage source, voltage source charges up , so it gains energy , its power(energy derivative) is positive
shoudnt work done (power integral)be positive?
The work done by a voltage source is the amount of energy transferred or expended by the source in order to move a charged particle from one point to another in an electric field.
The work done by a voltage source is directly proportional to the voltage of the source and the charge of the particle. This means that as the voltage or charge increases, the work done also increases.
Yes, the work done by a voltage source is dependent on the direction of the electric field. If the electric field and the direction of movement of the charged particle are parallel, then the work done is positive. If they are in opposite directions, then the work done is negative.
The unit of measurement for work done by a voltage source is joules (J). This is the same unit used to measure energy.
Yes, the work done by a voltage source can be negative if the direction of the electric field and the direction of movement of the charged particle are in opposite directions. This indicates that the source is absorbing energy from the particle instead of transferring it.