What is the p.d. between 2 points in a circuit if 200J of electrical energy are changed to other forms of energy when 25 coulombs of electric charge pass? If the charge flows in 10 seconds, what is the current?
Science help needed here.
Vq=energy
you know q, and energy.
Agricultural science
300v
To find the potential difference (p.d.) between two points in a circuit, you can use the formula:
p.d. = energy / charge
Given that 200J of electrical energy are changed to other forms of energy when 25 coulombs of electric charge pass, we can substitute these values into the formula:
p.d. = 200J / 25C
p.d. = 8V
Therefore, the potential difference between the two points in the circuit is 8 volts.
To find the current, you can use the formula:
current = charge / time
Given that 25 coulombs of charge flows in 10 seconds, we can substitute these values into the formula:
current = 25C / 10s
current = 2.5A
Therefore, the current in the circuit is 2.5 amperes.