Within the green dashed circle shown in the figure below, the magnetic field changes with time...

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Within the green dashed circle shown in the figure below, the magnetic field changes with time according to the expression B 8.00 -1.00t2 + 0.800, where B is in teslas, t is in seconds, and R 2.25 cm. xxKxX xxxxXL Bin (a) when t = 2.00 s, calculate the magnitude of the force exerted on an electron located at point P, which is at a distance n 4.50 cm from the center of the circular field region. 136e-19X What is the magnetic flux through a circle of radius r? N (b) when t = 2.00 s, calculate the direction of the force exerted on an electron located at point P, which is at a distance ri 4.50 cm from the center of the circular field region. O Tangent to the electric field line passing through point Ps and clockwise. O Tangent to the electric field line passing through point Pi and counterclockwise. O The magnitude is zero. (c) At what instant is this force equal to zero? (Consider the time after t Os)

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3 2. Nouo 6 Now, 2 2/ 2 Nouw taradayls law 익.indueheul E de 0 sE, thau .ds= E.ds

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