Question

What is the magnetic field inside primary solenoid \[S_1\] ?

Options

• \[B_1=\mu_0n_2I_1\]

• \[B_1=\mu_0n_1I_1\]

• \[B_1=\frac{\mu_0I_1}{n_1}\]

• \[B_1=\mu_0n_1I_2\]

Answer 1

For primary solenoid \[S_1\] , the internal magnetic field depends on its turns per unit length and its current. The field is \[B_1=\mu_0n_1I_1\] .