A Resistor does exactly what the name suggests, it creates resistance.
More precisely, it creates resistance for the flow of electrons, effectively limiting the amount of current flowing through it(and via ohms law, limits voltage).
To answer the question, A resistor isn't an input or output device, it behaves the same way no matter how you turn it and it can be placed on the input of a component(or circuit) aswell as the output.
resistor
as the name suggest transistor means to transfer resistor, it is an electronic device,
Same as any other kind of resistor, they're used to control voltages and currents in electric circuits.
A current limiter. Commonly used in well designed power supplies to make the power supply "Fold over" if output current exceeds a safe value. Commonly use a low value resistor in series with the output, and a circuit that senses the voltage across it. Although the above answer describes a circuit to limit current, the device that limits the amount of current flowing through it is a resistor.
Variable resistor is a passive component where we can vary its resistance simply by rotating it's head .These resistors are available from few ohm to several mega ohm. and are used for regulator or gain control in amplifier circuits. It is three terminal device.
A resistor
RESISTOR
the device is a resistor
resistor
In electronics, bidirectional device is device which can be used by both directions like resistor. It does not effect on characteristics of device if we change the terminals of that device.
A varistor is a variable resistor. It changes value dependent on the current draw and operates by changing its value as the resistor's temperature changes. For instance, during turn-on of a device, the resistor heats up causing the resistor to change it's value, thereby limiting the inrush current to the device. Once the initial start-up current is reduced and the device is operating normally, the resistor cools down and changes value again.
Micro device is a small device. Micro is similar as mini or small. The example of micro device is the computer capacitor and resistor.
combined
a resistor
You cannot 'slow' the flow of current in a wire. What you can do, however, is to reduce its value, or to limit its upper value. The device that will do this is a resistor. If, by your question, you are asking how to reduce the rate of change in its magnitude, then you can use an inductor.
A resistor is a device that resists the flow of electricity in a circuit. It is used to control the amount of current flowing through the circuit by providing a specific amount of resistance.
The volume knob on an audio device (radio, TV) is an example of a variable resistor. A variable resistor is also known as a potentiometer.