A magnetic field directed into the page changes with time according to B = 0.071 02 + 1.40, where B is in teslas and t is in seconds. The field has a circular cross section of radius R = 2.50 cm (see figure below). xxx xxxxx xxx xxx xx Rx xxxxxx B₁ Ⓡ (a) When t = 3.10 s and r₂ = 0.020 0 m, what is the magnitude of the electric field at point P₂? N/C (b) When t = 3.10 s and r₂ = 0.020 0 m, what is the direction of the electric field at point P₂? O perpendicular to r₂ and clockwise O perpendicular to r₂ and counterclockwise O out of the page O into the page

Physics for Scientists and Engineers with Modern Physics
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Chapter29: Sources Of The Magnetic Field
Section: Chapter Questions
Problem 21P
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A magnetic field directed into the page changes with time according to B = 0.071 0t² + 1.40, where B is in teslas and t is in seconds. The field has a circular cross section of radius R = 2.50 cm (see
figure below).
xx
P₂
**** x
191
****** *
7
1 *** *
xxxxx R
xxx
x x
x x xxx
xxx
Bir
in
P₁
(a) When t = 3.10 s and r2 = 0.020 0 m, what is the magnitude of the electric field at point P₂?
N/C
(b) When t = 3.10 s and ₂ = 0.020 0 m, what is the direction of the electric field at point P₂?
perpendicular to r2 and clockwise
Operpendicular to r₂ and counterclockwise
O out of the page
into the page
Transcribed Image Text:A magnetic field directed into the page changes with time according to B = 0.071 0t² + 1.40, where B is in teslas and t is in seconds. The field has a circular cross section of radius R = 2.50 cm (see figure below). xx P₂ **** x 191 ****** * 7 1 *** * xxxxx R xxx x x x x xxx xxx Bir in P₁ (a) When t = 3.10 s and r2 = 0.020 0 m, what is the magnitude of the electric field at point P₂? N/C (b) When t = 3.10 s and ₂ = 0.020 0 m, what is the direction of the electric field at point P₂? perpendicular to r2 and clockwise Operpendicular to r₂ and counterclockwise O out of the page into the page
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