 21.21.1: What is the magnitude of the electric force of attractionbetween an...
 21.21.2: How many electrons make up a charge of 38.0 fiCl
 21.21.3: What is the magnitude of the force a +25 /jlC chargeexerts on a +2....
 21.21.4: What is the repulsive electrical force between two protons4.0 X 1 0...
 21.21.5: When an object such as a plastic comb is charged byrubbing it with ...
 21.21.6: Two charged dust particles exert a force of 3.2 X 10 2 Non each oth...
 21.21.7: Two charged spheres are 8.45 cm apart. They are moved,and the force...
 21.21.8: A person scuffing her feet on a wool rug on a dry dayaccumulates a ...
 21.21.9: What is the total charge of all the electrons in a 15kgbar of gold...
 21.21.10: Compare the electric force holding the electron inorbit (r = 0.53 X...
 21.21.11: Two positive point charges are a fixed distance apart.The sum of th...
 21.21.12: Particles of charge +75, +48, and 85 jllC are placed ina line (Fig....
 21.21.13: Three charged particles are placed at the corners ofan equilateral ...
 21.21.14: Two small nonconducting spheres have a total charge of90.0 /JLC. (a...
 21.21.15: A charge of 4.15 mC is placed at each corner of a square0.100 m on ...
 21.21.16: Two negative and two positive point charges(magnitude Q = 4.15 mC) ...
 21.21.17: A charge Q is transferred from an initially unchargedplastic ball t...
 21.21.18: Two charges, Q0 and ~4Q0, are a distance apart.These two charges ar...
 21.21.19: Two positive charges +Q are affixed rigidly to the x axis,one at x ...
 21.21.20: Two small charged spheres hang from cords of equallength as shown i...
 21.21.21: What are the magnitude and direction of the electricforce on an ele...
 21.21.22: A proton is released in a uniform electric field, and it experience...
 21.21.23: Determine the magnitude and direction of the electricfield 16.4 cm ...
 21.21.24: A downward electric force of 8.4 N is exerted on a 8.8 jjlCcharge....
 21.21.25: The electric force on a +4.20/aC charge isF = (7.22 X 104N)j. Wha...
 21.21.26: What is the electric field at a point when the force
 21.21.27: Determine the magnitude of the acceleration experiencedby an electr...
 21.21.28: Determine the magnitude and direction of the electricfield at a poi...
 21.21.29: Draw, approximately, the electric field lines about twopoint charge...
 21.21.30: What is the electric field strength at a point in spacewhere a prot...
 21.21.31: A long uniformly charged thread (linear charge densityA = 2.5 C/m) ...
 21.21.32: The electric field midway between two equal butopposite point charg...
 21.21.33: Calculate the electric field at one corner of a square1.22 m on a s...
 21.21.34: Calculate the electric field at the center of a square52.5 cm on a ...
 21.21.35: Determine the direction and magnitude of the electricfield at the p...
 21.21.36: Two point charges, Q\ = 25 /jlC and Q2 = +45 fxC,are separated by a...
 21.21.37: A very thin line of charge lies along the x axis fromx = 00 to x = ...
 21.21.38: "(a) Determine the electric field E at the origin 0 inFig. 2159 du...
 21.21.39: Draw, approximately, the electric field lines emanatingfrom a unifo...
 21.21.40: Two parallel circular rings of radius R have their centerson the x ...
 21.21.41: You are given two unknown point charges, Q1 and Q2.At a point on th...
 21.21.42: Use Coulombs law to determine the magnitude anddirection of the ele...
 21.21.43: (a) Two equal charges Q are positioned at points(x = , y = 0) and (...
 21.21.44: At what position, x = xM, is the magnitude of theelectric field alo...
 21.21.45: Estimate the electric field at a point 2.40 cm perpendicularto the ...
 21.21.46: The uniformly charged straight wire in Fig. 2129 has thelength , w...
 21.21.47: Use your result from to find the electricfield (magnitude and direc...
 21.21.48: Determine the direction and magnitude of the electricfield at the p...
 21.21.49: A thin rod bent into the shape of an arc of a circle ofradius R car...
 21.21.50: A thin glass rod is a semicircle of radius R, Fig. 2166.A charge i...
 21.21.51: "Suppose a uniformly charged wire starts at point 0 andrises vertic...
 21.21.52: Suppose in Example 2111 that x = 0.250 m,Q = 3.15 nC, and that the...
 21.21.53: A thin rod of length carries a total charge Qdistributed uniformly ...
 21.21.54: Uniform plane of charge. Charge is distributeduniformly over a larg...
 21.21.55: Suppose the charge Q on the ring of Fig. 2128 was alldistributed u...
 21.21.56: An electron with speed v0 = 27.5 X 106m/s istraveling parallel to a...
 21.21.57: An electron has an initial velocity v0 = (8.0 X 104m/s)j.It enters ...
 21.21.58: An electron moving to the right at 7.5 X 105m/senters a uniform ele...
 21.21.59: At what angle will the electrons in Example 2116leave the uniform ...
 21.21.60: An electron is traveling through a uniform electricfield. The field...
 21.21.61: A positive charge q is placed at the center of a circularring of ra...
 21.21.62: A dipole consists of charges +e and e separated by0.68 nm. It is in...
 21.21.63: The HC1 molecule has a dipole moment of about3.4 X 10_30Cm. The tw...
 21.21.64: Suppose both charges in Fig. 2145 (for a dipole) werepositive, (a)...
 21.21.65: An electric dipole, of dipole moment p and moment ofinertia I, is p...
 21.21.66: Suppose a dipole p is placed in a nonuniform electricfield E = Ei t...
 21.21.67: (a) Show that at points along the axis of a dipole(along the same l...
 21.21.68: How close must two electrons be if the electric force betweenthem i...
 21.21.69: Given that the human body is mostly made of water, estimatethe tota...
 21.21.70: A 3.0g copper penny has a positive charge of 38 fiC. Whatfraction ...
 21.21.71: Measurements indicate that there is an electric fieldsurrounding th...
 21.21.72: (a) The electric field near the Earths surface has magnitudeof abou...
 21.21.73: A water droplet of radius 0.018 mm remains stationary inthe air. If...
 21.21.74: Estimate the net force between the CO group and theHN group shown i...
 21.21.75: Suppose that electrical attraction, rather than gravity, wererespon...
 21.21.76: In a simple model of the hydrogen atom, the electronrevolves in a c...
 21.21.77: A positive point charge Qi = 2.5 X 105 C is fixedat the origin of ...
 21.21.78: When clothes are removed from a dryer, a 40g sock is stuckto a swe...
 21.21.79: A small lead sphere is encased in insulating plastic andsuspended v...
 21.21.80: A large electroscope is made with leaves that are 78cmlongwires wi...
 21.21.81: Dry air will break down and generate a spark if the electricfield e...
 21.21.82: Two point charges, Qi = 6.7jitC and Q2 = 1.8 (jlC, arelocated betw...
 21.21.83: Packing material made of pieces of foamed polystyrene caneasily bec...
 21.21.84: One type of electric quadrupole consists of two dipoles placedend t...
 21.21.85: Suppose electrons enter a uniform electric field midwaybetween two ...
 21.21.86: An electron moves in a circle of radius r around a verylong uniform...
 21.21.87: Three very large square planes of charge are arranged asshown (on e...
 21.21.88: A point charge (m = 1.0 g) at the end of an insulating cord oflengt...
 21.21.89: Four equal positive point charges, each of charge 8.0 jjlC, areat t...
 21.21.90: Two small, identical conducting spheres A and B are a distance Rapa...
 21.21.91: A point charge of mass 0.210 kg, and net charge +0.340 /iC,hangs at...
 21.21.92: A onedimensional row of positive ions, each with charge+Q and sepa...
 21.21.93: A thin ringshaped object of radius a contains atotal charge Q unif...
 21.21.94: An 8.00 /iC charge is on the x axis of a coordinate systemat x = +5...
Solutions for Chapter 21: Electric Charge and Electric Field
Full solutions for Physics for Scientists & Engineers with Modern Physics  4th Edition
ISBN: 9780131495081
Solutions for Chapter 21: Electric Charge and Electric Field
Get Full SolutionsSince 94 problems in chapter 21: Electric Charge and Electric Field have been answered, more than 44152 students have viewed full stepbystep solutions from this chapter. This textbook survival guide was created for the textbook: Physics for Scientists & Engineers with Modern Physics, edition: 4. Chapter 21: Electric Charge and Electric Field includes 94 full stepbystep solutions. Physics for Scientists & Engineers with Modern Physics was written by and is associated to the ISBN: 9780131495081. This expansive textbook survival guide covers the following chapters and their solutions.

//
parallel

any symbol
average (indicated by a bar over a symbol—e.g., v¯ is average velocity)

°C
Celsius degree

°F
Fahrenheit degree