The resistor is a two-terminal passive device that withstands the flow of charges when connected to the power supply. Resister is a passive element that has the inherent property of resisting the flow of current. It is generally used to reach the amount of current, voltage or both required.
Resistors are the most common passive components. The use of a circuit resistor serves either to limit the current to a specific value or to provide a desired voltage drop. Resistors are electrical circuit components designed to reduce voltage (impact resistance). they work by turning electrical energy into another type of energy.
Resistances are important because you normally want a much lower voltage than in the mains.
Resistance adds a certain known amount of resistance (within the specified tolerance) in a circuit. it has two common uses. it limits the amount of current that can be allowed. secondly, they are used to provide an adequate bias voltage to the active components, such as transistors, to place them in the appropriate operating range.
What do you mean by resistor?
A resistor is a device that requires power so that the electrical current can pass through it. it has a specific numerical value in ohms that can be used to easily determine the amount of power needed to carry a known amount of coulombs in one second. this amount of power in watts, traditionally indicated by p, will be equal to the current in amperes, traditionally indicated by i squared and multiplied by the resistance in ohms.
What is the function of resistor?
Resistance is a passive device used to oppose the flow of current, by passive I mean that it has no change in its values with the change of direction of the current. by increasing or decreasing the resistance value, the amount of current to be traveled is controlled. that is to say, by increasing the value of the resistance, the amount of current to be flowed decreases and vice versa. Resistance has a linear relationship with voltage and current.
What is resistor and how it works?
A resistor is a device limiting the current. it is considered a passive device in that the electrical characteristics are fixed. an analogy is that of a hose supplying a jet of water. if you screw a small hole fitting, this will limit the amount of water that can flow from the fitting to a narrow stream. if you increase the water pressure, you will also increase the amount of water coming out of the small hole but with a much greater force. If you increase the pressure enough, the connection may break and crack, releasing the full force of pressure and water flow.
Likewise, if you increase the voltage applied to a resistor, the flow of current (water) will also increase. if you continue to increase the voltage (pressure). the resistance will break down and be destroyed a bit like the water connection. hope this will help you understand basic electricity