14. Two circular rings A and B, each of radius a = 30 cm, are placed coaxially with their axes vertical as shown in figure. Distance between centers of these ring is h= 40cm. Lower ring A ahs a positive charge of 10uC, while upper ring B has a negative charge of 20 uc. A particle of mass m= 100 gm carrying a possible charge of q = 10 uC is released froi rest at the centre of the ring A. (a) Calculate initial acceleration of the particle (b) Calculate velocity of particle when it reaches at the centre of upper ring B (g= 10 ms--)

Two circular rings A and B, each of radius a = 30cm, are placed coaxiallywith their axes vertical as shown in figure -1 .456. Distance between centres of these rings is h = 40cm . Lower ring A has a positive charge of 10mu C, while upper ringB has a negative charge of 20muC. A particle of mass m = 100 gm carrying a positive charge of q =10mu C is released from rest at the centre of the ring ltbergt (a) Calculate initial acceleration of the particle. (b) Calculate velocity of particle when it reaches at the centre ofupper ring B. (g= 10 ms^(-2))

Two circular rings A and B each of radius a=30cm are placed co-axially with their axes horizontal in a uniform electric field E=10^(5)N//C directed vertically upward as shown in the figure. The distance between the centers of these rings A and B is h=40cm . Ring A has a positive charge q_(1)=10muC while ring B has a negative charge of magnitude q_(2)=20muC . A particle of mass m = 100 gm and carrying a positive charge q=10muC is released from rest at the centre of the ring A. Calculate its velocity when it has moved a distance 40 cm.

Two identical circular rings A and B of radius 30 cm are placed coaxially with their axes horizontal in a uniform electric field E. = 10^(5)N//C directed vertically upward as shown in figure. Distance between centres ofthese rings A and B is40cm. Ring A has a positive charge 10muC while ring B has a negative charge of magnitude 20muC . A particle of mass 100g and carrying a positive charge 10muC is released from rest at the centre of the ring A. Calculate its velocity when it has moved a distanceof40cm. Take g= 10m//s^(2) [6 sqrt(2) m//s]

Two circular rings A and B each of radius a = 30 cm are placed coaxially with their axis horizontal in a uniform electric field E = 10^(5) NC^(-1) directed vertically upward as shown in figure. Distance between centers of the rings A and B (C_A and C_B)is 40 cm . Ring A has positive charge q_A = 10muC and B has a negative charge q_B = -20muC . A particle of mass m and charge q = 10muC is released from rest at the center of ring A. If particle moves along C_AC_B, then Speed of particle when it reaches at center of B is

Two circular rings A and B each of radius a = 30 cm are placed coaxially with their axis horizontal in a uniform electric field E = 10^(5) NC^(-1) directed vertically upward as shown in figure. Distance between centers of the rings A and B (C_A and C_B)is 40 cm . Ring A has positive charge q_A = 10muC and B has a negative charge q_B = -20muC . A particle of mass m and charge q = 10muC is released from rest at the center of ring A. If particle moves along C_AC_B, then Work done by electric field, when particle moves from C_A to C_B is

A thin fixed ring of radius 'R' and positive charge 'Q' is placed in a vertical plane. A particle of mass 'm' and negative charge 'q' is placed at the centre of ring. If the particle is given a small horizontal displacement, show that it executes SHM. Also find the time period of small oscillations of this particle, about the centre of ring. (Ignore gravity)