Question

Rubbing a balloon on your hair results in the balloon having a -1.93C charge. If you move the balloon 25 cm away from your hair, what is the electric field acting between the balloon and your hair? O 6.17 x 10 N/C O 2.78 x 10 N/C O 4.01 x 10s N/C O 4.67 x 10 N/C

Answer 1

Step-by-step explanation:

It is given that,

Charge acquired on rubbing a balloon on your hair, q = -1.93 C

If you move the balloon 25 cm away from your hair, r = 25 cm = 0.25 m

Electric field acting between the balloon and your hair is given by :

`E=(kq)/(r^2)`

k = electrostatic constant

`E=(9* 10^9\ Nm^2/C^2* 1.93\ C)/((0.25\ m)^2)`

`E=2.779* 10^(11)\ N/C`

or

`E=2.78* 10^(11)\ N/C`

Hence, this is the required solution.