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Jin S Zhang
- 20
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Why do we need resistors in every electronic circuit?
mgb_phys said:You don't need them in EVERY electrical circuit, but since they change the voltage/current and electrical circuits are all about voltage and current they do tend to come in handy!
Jin S Zhang said:Why we don't need them in every circuit? How are they handy? What would happen if there was no resistors in some circuit?
Please explain me coz I know nothing about electricity and just started learning.
Resistors are necessary in electronic circuits because they limit the flow of current in a circuit. This helps to protect the circuit and its components from damage due to excessive current. They also help to regulate the voltage and current levels in a circuit, which is important for the proper functioning of electronic devices.
Resistors act as voltage dividers in a circuit, meaning they divide the voltage between two points in a circuit. This is important because different components in a circuit often require different voltage levels to function properly. Resistors also help to regulate the flow of current by providing a specific amount of resistance, which determines how much current can flow through a circuit.
No, resistors come in different values and power ratings, and it is important to use the correct type and value of resistor in a circuit. Using the wrong resistor can result in incorrect voltage and current levels, which can damage the circuit or its components.
To choose the right resistor for your circuit, you need to know the value of resistance required for the specific component or part of the circuit. You can then select a resistor with the closest value to that resistance. It is also important to consider the power rating of the resistor to ensure it can handle the amount of current flowing through the circuit.
Yes, resistors have a variety of uses in electronic circuits, including as timing devices and in signal processing. In some circuits, they are also used to generate heat or to convert energy from one form to another. Additionally, resistors are used in electronic devices to provide a stable reference voltage for other components to operate correctly.