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3 years ago

11

The visible part of the electromagnetic spectrum consists of the colors that we see in a rainbow. Different colors correspond to

different wavelengths of light. Which color of visible light has the longest wavelength?A.Violet B.Red C.Green D.Yellow

1 answer:

ruslelena [56]3 years ago

4 0

The answer would be B red, violet would be the shortest

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In a series circuit there are 17 light bulbs, each providing 1 ohm of resistance. What is the total resistance?

Sauron [17]

Answer:

17 ohms

Explanation:

Given that,

In a series circuit there are 17 light bulbs, each providing 1 ohm of resistance.

We need to find the total resistance of the circuit.

The equivalent resistance for series combination is given by :

$R_{eq}=R_1+R_2+....$

For 17 light bulbs, the equivalent resistance is given by :

$R_{eq}=R+R+....\text{upto 17 terms}\\\\R_{eq}=17R\\\\=17$

Hence, the total resistance is 17 ohms. Hence, the correct option is (d).

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