The magnetic field inside a 5.0-cm-diameter solenoid is 2.0 T and decreasing at 3.80 T/s.
What is the electric field strength inside the solenoid at point 1.80 cm from the axis?
Mind you, I’m going to choose the best answer. many thanks
I’m guessing this problem is as simple as multiplying the magnetic field magnitude decrease by 2*Pi*d. Some units cancel out to give the units of an electric field. So if I am not mistaken, it will be like this…
E = 3.80 T/s x (2 x Pi x 0.018 m) = 0.430 N/C
Please let me know if I am incorrect.
where r is 1.8 cm (or 0.018 m)
dB/dt is the change, or 3.8 T/s
Plug it into the equation and the answer should be in V/m