PHYSICS 204,274
ELEMENTARY PHYSICS II
Concurrent enrollment in PHY 204 (lecture) and PHY 274 (laboratory and recitation) is
required. Prior completion of, or concurrent enrollment in, MTH 142 is also required.
TEXT: Physics for Scientists and Engineers, S
Considera region of space with a uniform electric eld E = 05me i. Ignore gravity.
cfw_a lithe electric potential vanishes at point 0. what are the electric potentials at points 1 and 2?
cfw_o If an electron cfw_m = 9.11 x 1031kg. q = 1.6I] x 10190 is rele
Find the equivalent oapaoitanoes 05, ot the two capacitorclrcuits.
311E
a
L131
1 1 1'1
Solution:
BHF 3UP 3n?
1 1 1 1 1
C = :- F.
' it (2uF+2uF+2uF+2uF) 5
The circuit of capacitors connected to a battery is at equilibrium.
cfw_a Find the charge Q3 on c
A pair of rails are connected by two mohile rods. A uniform magnetic eld B directed into the
plane is present. In the situations (a), (h), (c), (d), one or both rods move at constant velocity as
shown. The resistance of the conducting loop is R : cfw_1.28
In a region of uniform magnetic eld B a proton (m = 1.67 x 1027kg, q = 1.60 x 10190)
experiences aforce F = 8.0 x 1019Ni as it passes through pointhith velocity
v0 = 2000m/s f: on a circular path.
(a) Find the magnetic eld B cfw_magnitude and direction).
Consider a region of uniform electric eld as shown. A charged particle is projected at
time t = i] with initial velocity as shown. Ignore gravity.
(a) Find the components am and :19 of the acceleration at time: = 0.
(c) Find the components to and any of t
Consider two point charges positioned as shown. +Tnc
(a
(b
(c
(d
Find the magnitude of the electric eld at point A.
Find the electric potential at point A. 5m
Find the magnitude of the electric eld at point B.
Find the electric potential at point B. 6111
Consider the conguration of two point charges as shown.
(a) Find magnitude and direction of the force F21 exerted by its on ql.
(to) Find magnitude and direction of the electric eld EA at point PA.
to) Find the electric potential V5 at point P3.
Problem 82
A series RLC circuit with L = l2 mH. C = 3 uF. and R = 3.0, is driven by a generator
PHY 204: UNIT EXAM 4 with a maximum emf of 90 V and a variable angular frequency (A).
(it) Find the resonant frequency. (09
Name:
(b) Find L.s at resonance.
Pr
Consider the electric circuit shown. Find the currents I1, 12, I3, and I4
: 12V 22A.
2R+4R
29
I I3=I4 =I1+I2=8A
6151
Consider the electric circuit shown. Find the currents I1, I2, and I3
89
I
1
s 12v i
lg
6V
SolutiOn: T 12 3V '
4!]
_\/W\/_
. raw
Consider a charged particle moving in a uniform magnetic eld as shown. The velocity
is in y-direction and the magnetic eld in the yz-plane at 30 from the y-direction.
(a) Find the direction of the magnetic force acting on the particle.
(b) Find the magnit