Athin ring of radius 73 cm carries a positive charge of 610 nc uniformly distributed over it. a point charge q is placed at the center of the ring. it is observed that the electric field at point p, which is on the axis of the ring and 70 cm from its center, is equal to 2000 n/c and is directed away from the center of the ring. determine the value of q.

q = - 93.334 nC

Explanation:

GIVEN DATA:

Radius of ring  73 cm

charge on ring 610 nC

ELECTRIC FIELD p FROM CENTRE IS AT 70 CM

E  =  2000 N/C

Electric field due tor ring is guiven as

E1 = 3714.672 N/C

electric field due to point charge q

now the eelctric charge at point P is

E = E1 + E2

solving for q

q = - 93.334 nC

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when the use of electricity burdens the fuse and miniarure circuit beakers and there is a possibility of a fuse then they automatically cut off the electricity supply to your homes and after you fix the problem u jzt switch it on and it continues the supply of electricity to ur homes