Showing 241 to 250 of 631 Questions

An infinite nonconducting sheet has a surface charge density σ = +5.80pC/m2. (a) How much work is done by the electric field due to the sheet if a particle of charge q = + 1.60 x 1019 C is moved from the sheet to a point P at distance d = 3.56 cm from the sheet? (b) If the electric potential V is defined to be zero on the sheet
2499 
An infinite nonconducting sheet has a surface charge density σ = 0.10μC/m2 on one side. How far apart are equipotential surfaces whose potentials differ by 50 V?
0141 
An infinite nonconducting sheet has a surface charge density σ = 0.10 µC/m2 on one side. How far apart are equipotential surfaces whose potentials differ by 50 V?
1235 
An infinite plane of charge has surface charge density 3.5 μC/m2. How far apart are the equipotential surfaces whose potentials differ by 100 V?
0112 
An infinite plane of surface charge density σ = +2.5 μC/m2 is in the yz plane. (a) What is the magnitude of the electric field in newtons per coulomb? In volts per meter? What is the direction of E for positive values of x? (b) What is the potential difference Vb – Va when point b is at x = 20 cm and point a is at x = 50
0157 
An infinitely long line of charge has linear charge density 5.00 X 1012 C/m. A proton (mass 1.67 X 1027 kg, charge + 1.60 X 1019 C) is 18.0 cm from the line and moving directly toward the line at 1.50 X 103 m/s. (a) Calculate the proton's initial kinetic energy. (b) How close does the proton get to the line of charge?
1327 
An initially neutral electrscope is charged by induction by bringing near a positively charged object. If 3.22 x 108 electrons flow through the ground wire to Earth and the ground wire is then removed, what is the net charge on the electrscope?
01 
An initially uncharged electroscope is polarized by bringing a negatively charged rubber rod near the bulb. If the bulb end of the electroscope acquires a net charge of +2.50pC, how many electrons are on the leaf end?
01 
An insulating rod having linear charge density 1 = 40.0 μC/m and linear mass density μ = 0.100 kg/m is released from rest in a uniform electric field E = 100 V/m directed perpendicular to the rod (Fig. P25.13) (a) Determine the speed of the rod after it has traveled 2.00 m. (b) What If? How does your answer to part (a) change
1634 
An insulating spherical shell with inner radius 25.0 cm and outer radius 60.0 cm carries a charge of + 150.0 µC uniformly distributed over its outer surface (see Exercise 23.43). Point a is at the center of the shell, point b is on the inner surface, and point c is on the outer surface. (a) What will a voltmeter read if it is connected b
2429