Question

What does \[\frac{dI}{dt}\] represent, and what is its SI unit?

Options

• Magnetic flux through one turn; weber (Wb)

• Rate of change of current; \[\mathrm{A\,s^{-1}}\]

• Current through the coil; ampere (A)

• Induced EMF; volt (V)

Answer 1

\[\frac{dI}{dt}\] measures how quickly the current changes with time. Its SI unit is amperes per second, \[\mathrm{A\,s^{-1}}\].