Question

What is \[N\Phi_B\] called, and what is its unit?

Options

• Induced current; volts

• Rate of change of flux; seconds

• Number of magnetic flux linkages; weber-turns

• Magnetic field; weber-turns per second

Answer 1

For a coil of \[N\] turns, \[N\Phi_B\] counts the magnetic flux linkages. Because it combines turns with flux measured in weber, its unit is weber-turns.