Within the green dashed circle shown in the figure below, the magnetic field changes with time according to the expression B = 3.00t - 3.00t? + 0.800, where B is in teslas, t is in seconds, and R = 2.60 cm. x x x x 7x × x x x x x R x x x x x × x 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 r, = 5.20 cm from the center of the circular field region. (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 r, = 5.20 cm from the center of the circular field region. Tangent to the electric field line passing through point P, and clockwise. Tangent to the electric field line passing through point P, and counterclockwise. The magnitude is zero. (c) At what instant is this force equal to zero? (Consider the time after t = 0 s.)
Within the green dashed circle shown in the figure below, the magnetic field changes with time according to the expression B = 3.00t - 3.00t? + 0.800, where B is in teslas, t is in seconds, and R = 2.60 cm. x x x x 7x × x x x x x R x x x x x × x 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 r, = 5.20 cm from the center of the circular field region. (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 r, = 5.20 cm from the center of the circular field region. Tangent to the electric field line passing through point P, and clockwise. Tangent to the electric field line passing through point P, and counterclockwise. The magnitude is zero. (c) At what instant is this force equal to zero? (Consider the time after t = 0 s.)
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Chapter1: Units, Trigonometry. And Vectors
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I am unsure of the formula for parts A and C.
Transcribed Image Text:Within the green dashed circle shown in the figure below, the magnetic field changes with time according to the expression B = 3.00t - 3.00t? + 0.800, where B is in
teslas, t is in seconds, and R = 2.60 cm.
x x x x 7x × x
x x x x R x
x x x x × x
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 r,
= 5.20 cm from the center of the
circular field region.
(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 r,
= 5.20 cm from the center of the circular
field region.
Tangent to the electric field line passing through point P, and clockwise.
Tangent to the electric field line passing through point P, and counterclockwise.
The magnitude is zero.
(c) At what instant is this force equal to zero? (Consider the time after t = 0 s.)
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