One volt is the potential difference between two points if 1 joule of energy is needed to move _____ coulomb of charge between the two points.
one
To determine the number of coulombs needed to move 1 joule of energy between two points, we can use the formula that relates energy and charge:
Energy (E) = Charge (Q) × Voltage (V)
In this case, we know that the energy required is 1 joule, and we want to find the charge (Q) when the voltage (V) is 1 volt. Rearranging the formula, we have:
Q = E / V
Substituting the given values, we have:
Q = 1 joule / 1 volt
Therefore, 1 coulomb of charge is needed to move 1 joule of energy between the two points.
To find the answer to this question, we need to use the equation that relates energy, charge, and potential difference. The equation is:
Energy (in joules) = Charge (in coulombs) × Potential difference (in volts)
In this case, we are given that 1 volt is the potential difference between two points. Let's represent this value as V. Additionally, the energy required to move charge between the two points is 1 joule. Let's represent this value as E. Finally, we need to find the amount of charge that is moved, represented by Q.
Using the equation, we can rearrange it to solve for charge:
E = Q × V
Substituting the values we have:
1 joule = Q × 1 volt
Thus, to find the value of Q, we divide both sides of the equation by 1 volt:
1 joule / 1 volt = Q
Therefore, 1 coulomb of charge is needed to move between the two points to produce a potential difference of 1 volt.