A flashlight bulb typically has a small metallic button at one end, and this but

Question

A flashlight bulb typically has a small metallic button at one end, and this button is surrounded by ceramic material. The chief purpose of the ceramic material is to insulate the button from the other contact point. What is the other contact point of the bulb?

Question 15 options:

The metal outside part where you see the threads to screw in the bulb.

the glass

the black ceramic stuff.

There is no other contact point. You only need to contact the tip of the bulb.

The metal outside part where you see the threads to screw in the bulb.

the glass

the black ceramic stuff.

There is no other contact point. You only need to contact the tip of the bulb.

Explanation / Answer

The metal outside part where you see the threads to screw in the bulb.

The metal outside (sometimes containing threads) makes the circuit complete.

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