The energy required to start a reaction IS called the activation energy. TRUE
"How do changes in voltage or resistance affect current in an electric circuit?"
1 answer:
We can answer the question by looking at the Ohm's law, which gives us the relationship between voltage (V), current (I) and resistance (R) of a circuit:
equivalently, we can rewrite it as
by looking at the equation, we can make the following observations:
1) The current is proportional to the voltage: therefore, if the voltage increases, the current increases as well; if the voltage decreases, the current decreases too.
2) The current is inversely proportional to the resistance: if the resistance increases, the current decreases, and if the resistance decreases, the current increases.
equivalently, we can rewrite it as
by looking at the equation, we can make the following observations:
1) The current is proportional to the voltage: therefore, if the voltage increases, the current increases as well; if the voltage decreases, the current decreases too.
2) The current is inversely proportional to the resistance: if the resistance increases, the current decreases, and if the resistance decreases, the current increases.
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Answer:
a
The total charge is
b
The change in potential energy is
c
The height is
Explanation:
From the question we are told that the
The magnitude of electric field is
The number of proton is
The distance between the plates is
The total charge can be mathematically represented as
Where e is the charge on one proton which has a value of
Substituting values
The change in potential energy is mathematically represented ads
where the negative sign shows that the work done by the electric force is against the electric field
Substituting values
The mass of the bead is given as 0.05kg
The change in potential due to gravity is mathematically given as
the negative sign is due to the fact that the height is decreasing
And
Making h the subject
Substituting values