A conventional current f runs through a 750 turn coil of radius 7 cm in the dire

Question

A conventional current f runs through a 750 turn coil of radius 7 cm in the direction shown in the diagram, Initially the current in the coil is constant and is 2.1 amperes. A single loop of copper wire of radius 3.5 cm is placed 6.20m from the coil. Bothe loop and coil are stationary and their axes on the same straight line. What is the direction of the current in the coil when viewed from the left of the coil? In this initial state, what is the direction of the electric field at location P inside the copper loop? What is the absolute value of the magnetic flux in the copper loop at this initial time l_1? Show your work. Now the power supply is adjusted so the current in the coil increases and 0.12 s later the current is 4.8 amperes. What is the magnitude of the induced emf in the copper loop? Show your work. Draw an arrow on the diagram indicating the direction of the electric field in the copper loop at location P. Explain briefly how you determined the direction, using words and/ce arrows.

Explanation / Answer

a) the induced current is awkward clock

b) is radial, perpendicular to the magnetic field

c) B= *I/2a=( 4*pi*10^-7* 2.1) /2*0,035= 0,000037 T

Flux= B*A= 0,000037 T* (pi*0,035^2) = 0,000000145 weber

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