Asource charge generates an electric field of 1236 n/c at a distance of 4 m. what is the magnitude of the source charge? a) 2.2 µc b) 680 µc c) 2.2 c d) 680 c

We know that the relationship between Electric Field , Charge  and Distance is given by :

Where, k Columb's Constant

Q= Source charge that generates the electric field

R = Distance from the charge =4m

E=Electric field = 1236N/C

As, we have to find the charge therefore rearranging the formula we get :

Putting the values we get

On solving

µC

Therefore the magnitude of source charge is 2.2 µC  

1 the 4 is sig