Two concentric rings
Two concentric rings, one of radius a and the other of radius b, have the charges +q, and −(2/5)^−3/2q, respectively as shown in fig. Find the ratio b/a if a charge particle placed on the axis at z =a is i equilibrium.
30
Oct
Two concentric rings, one of radius a and the other of radius b, have the charges +q, and −(2/5)^−3/2q, respectively as shown in fig. Find the ratio b/a if a charge particle placed on the axis at z =a is i equilibrium. and −(2/5)^−3/2q have the charges +q one of radius a and the other [...]
Two concentric rings, one of radius R and total charge +Q and second of radius 2 R and total charge −8–√Q, lie in x−y plane (i.e., z = 0 plane). The common centre of rings lies at origin and the common axis coincides with z-axis. The charge is uniformly distributed on both rings. At what distance from origin is the net electric field on z-axis zero?
15
Sep
Two concentric rings, one of radius R and total charge +Q and second of radius 2 R and total charge −8–√Q, lie in x−y plane (i.e., z = 0 plane). The common centre of rings lies at origin and the common axis coincides with z-axis. The charge is uniformly distributed on both rings. At what [...]
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2q ,
3q and 4q are placed at the corner A ,
B ,
C and D of a square as shown in the fig ,
Charges q ,
lie in x−y plane (i.e. ,
one of radius R and total charge +Q and second of radius 2 R and total charge −8–√Q ,
The direction of electric field at the centre of the square is along ,
Two concentric rings ,