Question 3-4: refer to a thin, nonconducting ring of radius R, as shown below, which has a charge Q uniformly spread out on it. The electric potential at a point P, which is located on the axis of symmetry a distance x from the center of the ring, is given by A. Q / (4πɛ0x) B. Q / …

The capacitor shown in Figure 1 above is charged by connecting switch S to contact a. If switch S is thrown to contact b at time t = 0, which of the curve in Figure 2 above represents the magnitude of the current through the resistor R as a function of time? A. A B. B C. C …

A beam of neutral hydrogen atoms in their ground state is moving into the plane of this page and passes through a region of a strong inhomogeneous magnetic field that is directed upward in the plane of the page. After the beam passes through this field, a detector would find that it has been A. deflected …

The circuit shown is in a uniform magnetic field that is into the page and is decreasing in magnitude at rate of 150 tesla/second. The ammeter reads A. 0.15 A B. 0.35 A C. 0.50 A D. 0.65 A E. 0.80 A (GR9677 #02) Solution: V − IR − ɛ = 0 I = (V − ɛ)/R ɛ = − dΦ/dt = −AdB/dt Given: dB/dt = −150 t/s (minus …

TABLE OF INFORMATION (Printed in the test booklet) me = 9.11 × 10−31 kg e = 1.60 × 10−19 coulomb N0 = 6.02 × 1023 per mole R = 8.31 joules/(mole K) k = 1.38 × 10−23 joule/K = 1.38 × 10−16 erg/K c = 3 × 108 m/s h = 6.63 × 10−34 Joule second = 4.1 × 10−15 eV.second ħ = h/2π ɛ0 = 8.85 × 10−12 coulomb2/(newton meter2) μ0 = 4π × 10−7 weber /(ampere meter) G = 6.67 × 10−11 meter3/(kilogram second2) g = 9.80 …