Ahollow, conducting sphere with an outer radius of 0.250 m and an inner radius of 0.200 m has a uniform surface charge density of +6.37×10−6c/m2. a charge of −0.500μc is now introduced at the center of the cavity inside the sphere. (a) what is the new charge density on the outside of the sphere? (b) calculate the strength of the electric field just outside the sphere. (c) what is the electric flux through a spherical surface just inside the inner surface of the sphere?
Solved
Show answers
More tips
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
Answers on questions: Physics
- P Physics Ineed like right 1. energy resources must be traded among most nations. true false 2. variation in neutrons of an atom will change the identity of the element. true false 3....
- P Physics Acontainer of gas molecules is at a pressure of 2 atm and has amass density of 1.7 grams per liter. all of the molecules in thecontainer are diatomic nitrogen molecules with...
- P Physics Consider the master equation for a random walker on a one dimensional lattice of sites with m = 0, plus or minus 1, plus or minus 2, and discrete time t = 0, 1, 2, as discussed...
- P Physics Calculate the change in the entropies of the system and the surroundings, and the total change in entropy, when a sample of nitrogen gas of mass 14 g at 298 k and 1.00 bar doubles...
- P Physics The drawing shows two thermally insulated tanks. they are connected by a valve that is initially closed. each tank contains neon gas at the pressure, temperature, and volume...
- P Physics Question 2 (1 point) a car headed north at 15.0 m/s experiences an acceleration of 2.50 m/s2. how long will it take the car to reach a velocity of 42.1 m/s?...
- H History List in chronological order the three french governments...
- H History How did president john f. kennedy most support civil rights?...
- S Social Studies Post-traumatic stress disorder is unique among psychological disorders because: a. the cause of the disorder may be specified with certainty b. the genetic markers for the disorder...
- C Chemistry 33p is a radioactive isotope of phosphorus. can 33p be used to make a radioactive nucleotide?...
Ответ:
a)5.73 *10^-6 C/m^2; b)648*10· N/C c)56.5 *10^3 Nm^2/C
Explanation: Considering the definition of surface charge density as:
σ = Q/ area of sphere
so Q = σ * 4*π* R^2outer
The new Q at the outer radius is: Q initial -0.5 microC =5 micro C
The Electric with the new outer charge is equal to:
E= k*Q / R^2outer= 9 10^9* 5 microC/(0.25m)^2= 648*10^3 N/C
Finally the flux corresponding to the internal charge is equal to
By using Gauss law, the total flux is equal to net change divided ε0
so this is 0.5 microC/ ε0= 56.5 *10^3 Nm^2/C
Ответ: