Author Options:

Resistors and capacitors Answered

can any one tell me how can we use and install resistors and capacitors? And how can we study the resistors and capacitors


The forums are retiring in 2021 and are now closed for new topics and comments.

Best Answer 10 years ago

Sorrly about the lack of diagrams I went though much trouble attempting to upload them with no success.

Resistors and capacitators are a passive devices, meaing they are incapable of current gain or switching. Resistors are used to control/slow the flow of current in a electrical circuit by providing resistance, creating a drop in voltage across the device.

Imagine water flowing through a pipe. If we make the pipe narrow then this will restrict the flow of water. If we force the water (current) through the narrow gap by increasing the pressure (voltage) then energy will be given off as heat. In addition, there will be a significant difference in pressure (voltage) above and below the restriction. In electronics we use a resistor when we need to reduce the voltage applied to a circuit.

Capacitators are used to store and release electricity, usually as the result of a chemical reaction. Also referred to as a storage cell, a secondary cell, a condenser, or an accumulator.
Back to the water flowing through a pipe example. Imagine a capacitor as being a storage tank with an inlet and an outlet pipe. First, let's discuss the case of a "coupling capacitor" where the capacitor is used to connect a signal from one part of a circuit to another without allowing any direct current to flow.
If the current flow is alternating between zero and a maximum, our "storage tank" capacitor will allow the current waves to pass through.
However, if there is a steady current, only the initial short burst will flow until the "floating ball valve" closes and stops further flow.
A coupling capacitor is represented like this: --| |--
So a coupling capacitor allows "alternating current" to pass through because the ball valve doesn't get a chance to closreferred to as a storage cell, a secondary cell, a condenser, or an accumulator.

Its dificult at to learn at first but it's all a part of the electrical circuit and becomes indispensible when working with electronics.

7 years ago

I have seen in some suppliers' websites that provide technical details and installation methods of capacitors and other electronic components. You can refer them.