Question

question 5 (1 point)
one joule per coulomb is a
newton.
volt.
electron - volt.
farad.

Explanation:

To solve this, we recall the definitions of the units:

• Newton (\(N\)) is the unit of force (\(F = ma\)), with dimensions of \(\text{kg·m/s}^2\).
• Volt (\(V\)) is defined as energy per unit charge: \(V=\frac{W}{Q}\), where \(W\) is work (in joules, \(J\)) and \(Q\) is charge (in coulombs, \(C\)). So \(1\,\text{V} = 1\,\text{J/C}\).
• Electron - volt (\(eV\)) is a unit of energy, equal to the energy gained by an electron moving through \(1\,\text{V}\) (not \(J/C\)).
• Farad (\(F\)) is the unit of capacitance (\(C=\frac{Q}{V}\)), with dimensions of \(\text{C/V}\) (not \(J/C\)).

Answer:

B. volt