An chemical equation has the same number of atoms of each element on both sides of the equation
1 answer:
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Answer:
To decrease the current;
1) Use fewer loops or number of turns
2) Use a lower speed of rotation of the coil in the magnetic field
3) Use a weaker magnetic
Explanation:
According to Faraday's Law of induction, which is the basis of the electromagnetism, electromagnetic induction and therefore the basis of the electric generator, can be written as follows;
Where;
ε = The induced voltage
N = The number of turns (loops)
ΔФ = The change in the magnetic flux
Δt = The change in the time (the duration)
Given that voltage is directly related to the current, decreasing the voltage, decreases the current
To decrease the voltage, and therefore, the current we can;
1) Reduce the number of loops in the coil
2) Increase the time change per unit change in flux by slowing down the speed of rotation of the generator
3) Decrease the amount of change in the magnetic field per turn, by using a weaker magnetic
Answer:
T = 228.3N
Explanation:
We are given:
w = 130N
r = 4.0m
We take g = 10
Therefore:
w = m×g
130 = m × 10
m = 130/10
m = 10
At the lowest point,we use the equation:
;
Since we are asked to find tension T, we now have:
Therefore, substituting figures in the equation, we have:
;
T = 228.3N
The tension in the rope is 228.3N