The magnetic field inside a 5.0-cm-diameter solenoid is 2.0 T and decreasing at
ID: 2038099 • Letter: T
Question
The magnetic field inside a 5.0-cm-diameter solenoid is 2.0 T and decreasing at 3.40 T/s. Part A What is the electric field strength inside the solenoid at a point on the axis? Express your answer as an integer and include the appropriate units. E-Value Units Submit Request Answer Part B What is the electric field strength inside the solenoid at a point 2.00 cm from the axis? Express your answer to three significant figures and include the appropriate units -Value Units Submit RequestAnswer Provide FeedbackExplanation / Answer
A) E = 0
B) using Faradys law,
induced emf = rate of change of magnetic flux
E*2*pi*r = A*dB/dt
E = A*(dB/dt)/(2*pi*r)
= pi*r^2*(dB/dt)/(2*pi*r)
= (r/2)*(dB/dt)
= (0.02/2)*3.4
= 0.034 N/c
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.