Physics, asked by rahimsharif, 1 year ago

what is resistor explain

Answers

Answered by HBSingh
1
Resistor is any kind of obstruction in the path of current which resists the flow of current through it although the current passing through resistor does not changes but potential drops down. This is because its not Voltage that depend on the current but its the current that depends on voltage. Resistor is of mainly two kinds Variable resistor and resistors with constant resistance. There are other also forms of resistors such as inductive reactence, Capacitive reactance which comes on higher class.
Simply,
Resistor is a passive two terminal device with obstructs flow of current and used in electrical circuits for dividing and controlling current.

HBSingh: bhai thanks to kah do
Answered by maroon5
0
Hi there..
Here's your answer...

The resistor is a passive electrical component to create resistance in the flow of electric current. In almost all electrical networks and electronic circuits they can be found. The resistance is measured in ohms. An ohm is the resistance that occurs when a current of one ampere passes through a resistor with a one volt drop across its terminals. The current is proportional to the voltage across the terminal ends. This ratio is represented by Ohm’s law:

formula with ohm's law: R=V/I

Resistors are used for many purposes. A few examples include delimit electric current, voltage division, heat generation, matching and loading circuits, control gain, and fix time constants. They are commercially available with resistance values over a range of more than nine orders of magnitude. They can be used to as electric brakes to dissipate kinetic energy from trains, or be smaller than a square millimeter for electronics...

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