Hardware Development Engineer Interview Questions

5,136 hardware development engineer interview questions shared by candidates

Then a brain teaser about 3 light bulbs in a room, each bulb is connected to one switch outside the room. Each switch is connected to only one bulb. If you are outside the room and can do anything to the switches but can only go in the room once to see the bulbs, how can you figure out which bulb is attached to which switch?
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Hardware Engineer

Interviewed at Microsoft

4
Oct 22, 2012

Then a brain teaser about 3 light bulbs in a room, each bulb is connected to one switch outside the room. Each switch is connected to only one bulb. If you are outside the room and can do anything to the switches but can only go in the room once to see the bulbs, how can you figure out which bulb is attached to which switch?

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