Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion

Discussion Forum : Electronic Devices and Circuits - Section 1 (Q.No. 10)

Electronic Devices and Circuits

10.

In the circuit of figure the function of resistor R and diode D are

to limit the current and to protect LED against over voltage

to limit the voltage and to protect LED against over current

to limit the current and protect LED against reverse breakdown voltage.

none of the above.

Answer: Option

Explanation:

Resistance limits current and diode is reverse connected and therefore protects LED against reverse breakdown.

Discussion:

14 comments Page 2 of 2.

Dileep reddy said: 7 years ago

What is reverse break down?

Kalakal said: 9 years ago

I accept your point @Aman.

Abhishek said: 1 decade ago

Thanks for explanation.

Sandeep said: 8 years ago

Agree @Aman.

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