A total charge of +4 C flows from the +9 V positive terminal of a battery to the negative terminal at 0 V. What is the change in potential energy of the charge?
Amanda,
all your questions are answered by
Voltage = potential energy per unit charge
9v*4c=36J??
Yes !!! :)
To calculate the change in potential energy of the charge, we can use the formula:
Change in Potential Energy = Charge × Voltage
In this case, the charge is +4 C and the voltage is +9 V. Plugging in the values into the formula, we get:
Change in Potential Energy = +4 C × +9 V
Now, to multiply the values, we need to multiply the numbers first, and then consider the signs. Since both values are positive, the product will also be positive.
4 × 9 = 36
Therefore:
Change in Potential Energy = +36 C·V
Thus, the change in potential energy of the charge is +36 C·V.