Two metallic sphere of radius 1 cm and 3 cm respectively are separated by a large distance D,(D»1lcm). Initially, the smaller sphere carries a charge Q while the larger one is uncharged. If a thin metallic wire is connected between the two spheres, the ratio ofthe charges on the smaller sphere to the larger on in equilib- rium will be : [IISc. 2012] (a) 1/3 (b) 1/9 (c) 3 (d) 9

Two metallic sphere of radius 1 cm and 3 cm respectively are separated by a large distance D,(D»1lcm). Initially, the smaller sphere carries a charge Q while the larger one is uncharged. If a thin metallic wire is connected between the two spheres, the ratio ofthe charges on the smaller sphere to the larger on in equilib- rium will be : [IISc. 2012] (a) 1/3 (b) 1/9 (c) 3 (d) 9

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter15: Electric Forces And Electric Fields

Section: Chapter Questions

Problem 53P: Suppose the conducting spherical shell of Figure 15.29 carries a charge of 3.00 nC and that a charge...

See similar textbooks

Similar questions

A spherical lubber balloon carries a total charge Q distributed uniformly over its surface. At r=0 , the radius of the balloon is R. The balloon is then slowly inflated until its radius reaches 2R at the time t0 . Determine the electric field due to this charge as a function of time (a) at the surface of the balloon, (b) at the surface of radius R, and (c) at the surface of radius 2R. Ignore any effect on the electric field due to the material of the balloon and assume that the radius increases uniformly with time.
Suppose the conducting spherical shell of Figure 15.29 carries a charge of 3.00 nC and that a charge of -2.00 nC is at the center of the sphere. If a = 2.00 m and b = 2.40 m. find the electric field at (a) r = 1.50 m, (b) r = 2.20 m, and (c) r = 2.50 m. (d) What is the charge distribution on the sphere?
Can you arrange the two point charges q1=2.0106C and q2=4.0106C along the x-axis so that E=0 at the origin?
What is the force on the charge q at the lower-right-hand comer of the square shown here?
Two charges are fixed in place along the x-axis, q1=+4mC at the origin and q2=-1mC at x=+4cm. Without going infinitely far away, in which region(s) could a small positive "test charge" experience no net electric force?
Two point charges, QA = +8 μC and QB = -5 μC, are separated by a horizontal distance r = 10 cm.Compute for the magnitude of the electric force.
A non-conducting sphere of radius R = 7.0 cm carries a charge Q = 4.0 mC distributed uniformly throughout its volume. At what distance, measured from the center of the sphere, does the electric field reach a value equal to half its maximum value?
Would the x-component of the net force on charge Q vanish? Or would it be the y-component?
A positive q1=1.55 uC if fixed at the origin, and a second charge q2=-2.09 uC is fixed at x=16.5cm. Where along the x-axis should a third charge be positioned so that it experiences no force?
Two metal spheres, one carrying a 8.0-μC charge and the other carrying a -21-μC charge, are initially 100 mm apart. They are brought in contact with each other and then moved back to their original positions. What is the numerical value of the ratio FEi /FEfFiE/ FfE, where FEiFiE is the magnitude of the electric force between the spheres before they are brought in contact and FEfFfE is the magnitude of that force after they are brought together and then moved back to their initial positions?
Two small spheres separated by a distance equal to 20.0 cm have equal charges. How many excess electrons must be present in each sphere so that the modulus of the repulsion force between them is equal to 3.33x10-21N?
The electric field, at a distance of 40 cm, from a very long uniform wire of chargeis 840 N/C. How much charge is contained in a 2.0 cm long of the wire?