An electric wheel chair is designed to run on a single 12-V battery rated to provide 100 ampere-hours. How much energy is stored
1 answer:
Explanation:
It is given that,
Voltage of the battery, V = 12 V
Current, I = 100 ampere-hours
Energy stored is given by the product of power and time taken. So,
P is the power,
P = 1200 watts
This power can be used for 1 hour or 3600 seconds
Energy,
E = 4320000 J
So, the energy stored in this battery is 4320000 J. Hence, this is the required solution.
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The charge on each of the equally charged drops of hairspray willl be 7 × 10 ⁻¹³ C
<h3>What is Columb's law?</h3>The force of attraction between two charges, according to Coulomb's law, is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.
Similar charges repel each other, whereas charges that are opposed attract each other.
Given data;
Electric force,F = 9 × 10 ⁻⁹ N
Distance between charges,d = 7 × 10⁻⁴ m
Chrge,q₁ = q₂ =q C
From Columb's law;
Hence the charge on each of the equally charged drops of hairspray willl be 7 × 10 ⁻¹³ C
To learn more about Columb's law refer to the link;
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Answer:
at t = 0.001 we have
at t = 0.01
at t = infinity
Explanation:
As we know that they are in series so the voltage across all three will be sum of all individual voltages
so it is given as
now we will have
now we have
So we will have
at t = 0 we have
q = 0
also we know that
at t = 0 i = 0
so we have
at t = 0.001 we have
at t = 0.01
at t = infinity