Problem 22.04 A 1500-nF capacitor with circular parallel plates 2.0 cm in diamet

Question

Problem 22.04

A 1500-nF capacitor with circular parallel plates 2.0 cm in diameter is accumulating charge at the rate of 35.5 mC/s at some instant in time.

Part A

What will be the induced magnetic field strength 14.5 cm radially outward from the center of the plates?

Express your answer using three significant figures.

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Part B

What will be the value of the field strength after the capacitor is fully charged?

Express your answer using three significant figures.

Problem 22.04

A 1500-nF capacitor with circular parallel plates 2.0 cm in diameter is accumulating charge at the rate of 35.5 mC/s at some instant in time.

Part A

What will be the induced magnetic field strength 14.5 cm radially outward from the center of the plates?

Express your answer using three significant figures.

B1 =   T  

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Part B

What will be the value of the field strength after the capacitor is fully charged?

Express your answer using three significant figures.

B2 =   T  

Explanation / Answer

part A:

magnetic field induced B = uo I/(2piR)

B = 4pi *10^-7 * 35.5*10^-3/(2pi * 0.145)

B = 4.8 *10^-8 Tesla

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part B:

the field is zero since it does not allow any current

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