Physics, asked by urvashimhalas2pbcdhv, 4 months ago

why a resistor is used in series with the LED?

Answers

Answered by sipraacharjer

0

Answer:

The simplest circuit to power an LED is a voltage source with a resistor and an LED in series. ... The ballast resistor is used to limit the current through the LED and to prevent that it burns. If the voltage source is equal to the voltage drop of the LED, no resistor is required.

Answered by chsumanth88762

1

Answer:

hi

hello

Explanation:

The simplest circuit to power an LED is a voltage source with a resistor and an LED in series. ... The ballast resistor is used to limit the current through the LED and to prevent that it burns. If the voltage source is equal to the voltage drop of the LED, no resistor is required.

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