Which statement describes the relationship of voltage and current?
2 answers:
By definition, of the law of ohm, we have to:
Where,
V: voltage
I: current
R: resistance
Therefore, we have that the relationship between voltage and current is proportional.
The proportionality constant for this case is the resistance.
For the current we have:
The proportionality constant for this case is the inverse of the resistance.
Answer:
A statement that describes the relationship of voltage and current is:
Voltage is directly proportional to current because I = V / R
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Answer:
0.021 V
Explanation:
The average induced emf (E) can be calculated usgin the Faraday's Law:
<u>Where:</u>
<em>N = is the number of turns = 1 </em>
<em>ΔΦ = ΔB*A </em>
<em>Δt = is the time = 0.3 s </em>
<em>A = is the loop of wire area = πr² = πd²/4 </em>
<em>ΔB: is the magnetic field = (0 - 1.04) T </em>
Hence the average induced emf is:
Therefore, the average induced emf is 0.021 V.
I hope it helps you!