14. A uniform magnetic field of magnitude 0.80 T in the negative z-direction is present in a region of space, as shown in the figure. A uniform electric field is also present. An electron that is projected with an initial velocity v₀ = 9.1 × 10⁴ m/s in the positive x-direction passes through the region without deflection. What is the electric field vector? (êx and êy are unit vectors in x- and y-directions, respectively) (A) +110 kV/m êx(B) -110 kV/m êy(C) +73 kV/m êx(D) -73 kV/m êy(E) None of the above.

17. A capacitor is charging in a simple RC circuit with a dc battery. Which one of the following statements about this capacitor is accurate?(A) There is a magnetic field between the capacitor plates because charge travels between the plates by jumping from one plate to the other.(B) There is no magnetic field between the capacitor plates because no charge travels between the plates.(C) There is a magnetic field between the capacitor plates, even though no charge travels between them, because the electric flux between the plates is changing.(D) There is a magnetic field between the capacitor plates, even though no charge travels between them, because the magnetic flux between the plates is changing.(E) The magnetic field between the capacitor plates is increasing with time because the charge on the plates is increasing.

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