What unit is represented by

a. joule/coulomb
b. coulomb/second
c. watt/second

a. is Volt and b. is Ampere.

For c., are you sure you don't mean Watt*sec instead of Watt/sec?

Think about the relationship between energy and power.

Your right sorry, it is watt-sec.

watt-seconds are Joules

a. Joule/coulomb (J/C) is the unit of electric potential, also known as voltage. Electric potential refers to the amount of electric potential energy per unit of charge at a specific point in an electric field.

To calculate the electric potential, you divide the energy in joules (J) by the charge in coulombs (C) at that specific point. Therefore, the unit J/C represents the electric potential or voltage.

b. Coulomb/second (C/s) is the unit of electric current. Electric current is the rate at which electric charge flows through a conductor.

To calculate electric current, you divide the amount of charge in coulombs (C) by the time in seconds (s) it takes for that charge to flow. Therefore, the unit C/s represents electric current.

c. Watt/second (W/s) is not a common unit in physics or engineering. Instead, the unit Watt (W) represents power, which is the rate at which energy is transferred or received.

To calculate power, you divide the amount of energy transferred in joules (J) by the time in seconds (s) it takes to transfer that energy. Therefore, the unit W/s does not have a specific physical representation in most contexts.