What causes charges to move in a circuit?
2 answers:
Answer:
a) Voltage
Explanation:
As we know that voltage difference and electric field is related as
now when we apply voltage across the length of any conductor then it will induce electric field inside the conductor.
Due to this electric field we can say that the free charge inside the conductor will experience electric force on it
Due to this electric force free charge will start moving inside the conductor and it will form electric current
So here correct answer for electric current will be
a) Voltage
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Explanation:
The given data is as follows.
Electric potential energy () = ?
Formula to calculate electric potential energy is as follows.
=
=
Thus, we can conclude that the electric potential energy of the pair of charges when the second charge is at point b is .
The height above the ground from where the skier start is 11.5 m.
<h3>Conservation of energy</h3>The height above the ground from where the skier start is determined by applying the principle of conservation of energy as shown below;
P.E = K.E
mgh = ¹/₂mv²
gh = ¹/₂v²
Thus, the height above the ground from where the skier start is 11.5 m.
Learn more about conservation of energy here: brainly.com/question/166559