Problem 33.16 The magnetic field inside a 5.0-cm-diameter solenoid is 2.0 T and

Question

Problem 33.16 The magnetic field inside a 5.0-cm-diameter solenoid is 2.0 T and decreasing at 4.70 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. EValue Units Submit My Answers Give Up Part B What is the electric field strength inside the solenoid at a point 2.20 cm from the axis? Express your answer to three significant figures and include the appropriate units. Value Units Submit My Answers Give Up Continue

Explanation / Answer

E (2 pi r ) = - pi r2 * dB/dt

E = -r/2 * dB/dt

a) E =  -r/2 * dB/dt = -0/2 * 4.70

= 0

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b) E =  -r/2 * dB/dt = -(2.2 * 10-2) / 2 * 4.70

= 0.0517 V/m

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