directed out of the page) -.1 (cm) 5. A square coil with sides of length 1.0 cm is moved through a region of uniform magnetic field at a constant speed, as shown in the figure above. Which of the following graphs best shows the current / in the coil as a function of the position x of the right edge as the coil moves through the magnetic field, where counterclockwise current is positive? (A) I(A) (B) I(A) -x (cm) .x (cm) 3 (C) I(A) (D) I(A) +x (cm} -x (cm) (E) /(A) 3 -x (cm)B. = a+ pi Resistor Power Supply nductor Area = 2.0 m? Coil: Resistance = 6.0 0 "-position = 2.0 cm 7. An inductor with inductance L = 0.30 H is connected in series with a resistor and both 6. The y-component of the magnetic field Bis are connected to a power supply, as shown above. The power supply generates a current / given as a function of time f by the equation that is given as a function of time t by the By =-a +Bt , where a = 4.0 T and equation / = 1 (1 - t/ k), where lo = 4.0 A B =3.0 T/s. A coil of wire with an area of and k = 2.0 s . What is the magnitude of the 2.0m - and a resistance of 6.0 2 is placed in this potential difference across the inductor induced by the changing current? field, parallel to the xz-plane at y= 2.0 cm. The (A) 0.15 V current in the coil at time f = 1.2 s is most nearly (B) 0.30 V (A) 0 (C) 0.60 V (B) 0.60 A (D) 1.2 V (C) 1.0 A (E) 2.4 V (D) 3.6 A (E) 6.0 A 8. A parallel plate capacitor with air between the plates is charged and then disconnected from the source of emf. If the space between the plates is now filled with a dielectric, what happens to the capacitance of the capacitor and the magnitude of the electric field between the plates? Magnitude of the Capacitance Electric Field (A) Increases Increases (B) Increases Remains constant C) Increases Decreases (D) Decreases Increases (E) Decreases Decreases