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MrRa [10]
3 years ago
9

1.Is it true to say that, current decreases when passing through a resistor and then increases again upon exiting?

Physics
1 answer:
siniylev [52]3 years ago
8 0
1. Yes, this true as voltage remains constant.
2. Yes, a moving electrical charge generates a magnetic field.
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Metal sphere A has a charge of -2 units and an identical sphere B has a charge of -4 units. If the spheres are brought into cont
shusha [124]

Answer:

 q1 = q₂=  -3

therefore each sphere has the same charge of -3 untis

Explanation:

The metallic spheres have mobile charge, so when the two spheres come into contact the total charge

           Q_total = q₁ + q₂

           Q_total = -2 -4

   

          Q_total = -6 units

it is distributed in between the two spheres evenly since the charges of the same sign repel each other.

When the spheres separate each one has

            q₁ = -6/2

            q1 = q₂=  -3

therefore each sphere has the same charge of -3 untis

5 0
3 years ago
Define acceleration to show its scientific meaning
Damm [24]
Increase in speed or rate
8 0
3 years ago
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The ____ of emitted light depends directly on the energy between the two orbits and this determines the color of the light
Anna007 [38]

The <u>frequency</u> of emitted light is directly proportional to the energy between the two orbits and this determines the color of the light.

<h3>What is light?</h3>

Light can be defined as a form of electromagnetic waves that does not require any medium for its propagation. This ultimately implies that, light is a form of wave that is generally referred to as a visual signal because it can be seen with the eyes.

According to the model of light wave, the <u>frequency</u> of emitted light is directly proportional to the energy between the two orbits and this determines the color of the light.

<em>In conlcusion, the </em><u><em>frequency</em></u><em> of emitted </em><em>light</em><em> is highly dependent on the </em><em>energy</em><em> between the two (2) </em><em>orbits</em><em>.</em>

Read more on energy here: brainly.com/question/1242059

7 0
3 years ago
A florescent light tube usually contains what?
Nady [450]

Answer:

mercury vapour

Explanation:

it contains many other gases and it contains mercury vapour

4 0
4 years ago
Which of the following elements is the most chemically reactive?
ivolga24 [154]

Answer:

B) Fluorine

Explanation:

The most reactive element is fluorine, the first element in the halogen group. The most reactive metal is francium, the last alkali metal (and most expensive element).

6 0
3 years ago
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