Lesson: Chapter 11 — Electronics

Smoothing and polarity protection 4 of 4 Reset answers

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Question 4

A diode protects a device from a reversed battery. How?

A It stores the charge B It becomes reverse biased and blocks the current C It melts like a fuse D It turns the current round

The right answer is the one marked above.

It becomes reverse biased and blocks the current. With the battery the right way round it is forward biased and the device works.

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