An electric current is a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in an ionised gas (plasma).

4 0

3 years ago

How long does it take for light from a star that is 8 light-years away to reach earth? A. 8 earth minutes B. 16 earth minutes C.

Hunter-Best [27]

Hey there,

Your question states: <span>How long does it take for light from a star that is 8 light-years away to reach earth?

It take just about (</span>8 earth years) <span> for light from a star that is 8 light-years away to reach earth. That is how </span> $FAST$ it would take.

Hope this helps.
~Jurgen

4 0

3 years ago

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Light from a lamp is shining on a surface. How can you increase the intensity of the light on the surface? Light from a lamp is

Kay [80]

Answer:

the correct option is C

Explanation:

The intensity of a lamp depends on the power of the lamp that is provided by the current flowing over it, therefore the intensity would increase if we raise the current.

Another way to increase the intensity is to decrease the area with a focusing lens, as the intensity is power over area, decreasing the area increases the power.

When we see the possibilities we see that the correct option is C

3 0

3 years ago

Mr. Smith is designing a race where velocity will be measured. Which course would allow velocity to accurately get a winner?

liraira [26]

I’m not completely sure but most likely is is the 10 mile bike ride, I hope I can help! (:

6 0

3 years ago

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