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  1. A parallel plate capacitor is being supplied with a steady current. Circular loop A is drawn around the wire supplying current to the capacitor. Circular loop B is drawn between the parallel plates of a capacitor. Both loops are centered upon the axis of symmetry. The plates are closely-spaced (drawing expanded for clarity). The magnitude of the path integral of the magnetic field around loop B must be Zero. Greater than zero, but less than that for A. Equal to that for A. Undeterminable without more information. 1 of 3 A B + − + − I + − + − + + − + − + − + − 2

  2. A polarizer P and polarization analyzer A intercept a beam of initially unpolarized light. The transmission axis of A is perpendicular to that of P. The intensity of light emerging from A is Zero. One-eighth the incident amount. One-quarter the incident amount. One-half the incident amount. Equal to the incident amount. 2 of 3 P A UNPOLARIZED LIGHT LIGHT PROPAGATION DIRECTION 3

  3. A polarizer P and polarization analyzer A intercept a beam of initially unpolarized light. The transmission axis of A is perpendicular to that of P. In between P and A is a second polarizer P2. Its transmission axis is 45 deg rotated with respect to that of P. The intensity of light emerging from A is Zero. One-eighth the incident amount. One-quarter the incident amount. One-half the incident amount. Equal to the incident amount. 3 of 3 P P2 A q UNPOLARIZED LIGHT LIGHT PROPAGATION DIRECTION 4

  4. A parallel plate capacitor is being supplied with a steady current. Circular loop A is drawn around the wire supplying current to the capacitor. Circular loop B is drawn between the parallel plates of a capacitor. Both loops are centered upon the axis of symmetry. The plates are closely-spaced (drawing expanded for clarity). The magnitude of the path integral of the magnetic field around loop B must be Zero. Greater than zero, but less than that for A. Equal to that for A. Undeterminable without more information. 1 of 3 A B + − + − I + − + − + + − + − + − + − 6

  5. A polarizer P and polarization analyzer A intercept a beam of initially unpolarized light. The transmission axis of A is perpendicular to that of P. The intensity of light emerging from A is Zero. One-eighth the incident amount. One-quarter the incident amount. One-half the incident amount. Equal to the incident amount. 2 of 3 P A UNPOLARIZED LIGHT LIGHT PROPAGATION DIRECTION 7

  6. A polarizer P and polarization analyzer A intercept a beam of initially unpolarized light. The transmission axis of A is perpendicular to that of P. In between P and A is a second polarizer P2. Its transmission axis is 45 deg rotated with respect to that of P. The intensity of light emerging from A is Zero. One-eighth the incident amount. One-quarter the incident amount. One-half the incident amount. Equal to the incident amount. 3 of 3 P P2 A q UNPOLARIZED LIGHT LIGHT PROPAGATION DIRECTION 8

  7. PROJECTION SCREEN 1 1 1 1 4 4 4 4 5 5 5 5 2 2 2 2 3 6 3 6 3 6 3 6 HAND IN TODAY’S ACTIVITIES SHEETS 9

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