Hint: Using Ampere\'s Law will save you a lot of bother. The figure shows a holl

Question

Hint: Using Ampere's Law will save you a lot of bother.

The figure shows a hollow cylindrical conductor with radii a = 1.6 cm and b = 4.5 cm which carries a current 1.0 A uniformly spread over its cross-section. Find the magnitude of the magnetic field at a distance of 2.4 cm from the axis. Using Faraday's Law, calculate the induced emf around the loop in the figure that is caused by the changing flux. Assign clockwise to be the positive direction for emf. Hint: Using Ampere's Law will save you a lot of bother.

Explanation / Answer

A. Zero.

the field inside the void area of a hollow conductor = 0.

B.

E=Blv=-1.1172 V

i=F/lB=-15.78A

R=E/I=0.0707 ohms

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