phy2049_f11_exam2_practice

It takes an energy of 74x10 23 j to flip the

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Unformatted text preview: t = 1 ms? (1) 3500 V (2) 0.35 V (3) –7 V (4) –350 V (5) –35 V PHY2049 Fall11 Exam 2 9. A parallel plate capacitor has circular plates with a radius R=2cm and a time- dependent electric field between them of (3 x 106 V/m- s) t . What is the magnitude of the induced magnetic field at a radius of r = 3cm from the central axis connecting the centers of the plates, which is larger than the radius R covered by electric field? (1) 3.3 x 10- 13 T (2) 1.5 x 10- 13 T (3) 2.2 x 10- 13 T (4) 1.8 x 10- 10 T (5) 0...
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