A small diameter, 89- cm long, solenoid has 201 turns and is connected in series with a resistor of 180 Ohm. Calculate the magnitude of the magnetic field in the middle of the solenoid when a voltage of 56 V is applied to the circuit.
Using Ohm's law you can calculate the current. Then use the equation for the magnetic field of a solenoid.
Using Ohm's law you can calculate the current. Then use the equation for the magnetic field of a solenoid.