1. A very long solenoid aligned with the z axis with radius a =0.5 m and n = 6370 turns/m has a current that is increasing at arate of
dI/dt = 0.3 A/s,
causing an increase in the magnetic field pointing in the zdirection. The formula for the magnetic field inside a solenoidis
B = μ0nI
The magnetic field is almost constant across the inside of thesolenoid (parallel to the axis) and almost zero outside.
(a) Calculate the EMF around a circle of radius r = 0.06 m from thecenter of the solenoid.
ε = 2.71361*10-5 V
(b) Calculate the EMF around a circle of radius r = 0.69 m from thecenter of the solenoid.
(c) You put a circular ring of wire with radius r = 0.69 m andresistance R = 0.1 Ω is placed at the center of the solenoid.How much current flows through the ring?
(d) What direction is the current flowing?
(Choices below)
â´ -x
â´ +x
â´ Clockwise (looking towards the origin from the +z side)
â´ Counterclockwise (looking towards the origin from the +zside)
1. A very long solenoid aligned with the z axis with radius a =0.5 m and n = 6370 turns/m has a current that is increasing at arate of
dI/dt = 0.3 A/s,
causing an increase in the magnetic field pointing in the zdirection. The formula for the magnetic field inside a solenoidis
B = μ0nI
The magnetic field is almost constant across the inside of thesolenoid (parallel to the axis) and almost zero outside.
(a) Calculate the EMF around a circle of radius r = 0.06 m from thecenter of the solenoid.
ε = 2.71361*10-5 V
(b) Calculate the EMF around a circle of radius r = 0.69 m from thecenter of the solenoid.
(c) You put a circular ring of wire with radius r = 0.69 m andresistance R = 0.1 Ω is placed at the center of the solenoid.How much current flows through the ring?
(d) What direction is the current flowing?
(Choices below)
â´ -x
â´ +x
â´ Clockwise (looking towards the origin from the +z side)
â´ Counterclockwise (looking towards the origin from the +zside)
