Answers and Solutions

Answer

Answer

The resistor opposes the flow of current, Hence it reduces the current if resistance is increased.

I=V/R

Current is inversely proportonal to resistance.

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 Resistor is like a current limiter. It limits the amount of current flowing through a device.

Suppose you have to apply a certain current of 5 amperes to a device input and you have 10 amperes source so what would you do ?

solution : Add a resistor in series to limit the current.

This resistance will create a voltage drop (reduces voltage in that area or drops potential) thus reducing the current passing through it.

Current is defined as amount of charge flowing in a given time so you basically limit the flow of electrons (or you RESIST the flow of electrons). In the process of limiting the flow of current and reducing voltage, a resistor absorbs electrical energy, which is released in the form of heat.

If you break one resistor , and scratch off the outer coating of insulating paint, you might see an insulating ceramic rod running through the middle with copper wire wrapped around the outside. A resistor like this is described as wire-wound. The number of copper turns controls the resistance very precisely: the more copper turns, and the thinner the copper, the higher the resistance. In smaller-value resistors, designed for lower-power circuits, the copper winding is replaced by a spiral pattern of carbon. Resistors like this are much cheaper to make and are called carbon-film. Generally, wire-wound resistors are more precise and more stable at higher operating temperatures.

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Resistors limit the flow of electrons, reducing current. Voltage comes about by the potential energy difference across the resistor. The mathematical answer is that a resistor is a two-terminal electric device which obeys, or you could say enforces, Ohm's law: V=IR.

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A resistor shall reduce the overall current of a circuit if connected in parallal with the circuit

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Electric flow (current) is the motion of electrical charges through a material. Resistance is the physical obstruction of these moving charges. Resistors limit the flow of electrons, reducing current.

Answer

Current is defined as amount of charge flowing in a given time so you basically limitthe flow of electrons (or you RESIST the flow of electrons). In the process of limiting the flow of current and reducing voltage, a resistor absorbs electrical energy, which is released in the form of heat.