Question

Matt forgot to put the fabric softener in the wash. As his socks tumbled in the dryer, they became charged. If a small piece of lint with a charge of +1.25 E -19 C is attracted to the socks by a force of 3.0 E -9 N, what is the magnitude of the electric field at this location?
3.8 E10 N/C


4.2 E10 N/C


2.4 E10 N/C


1.5 E10 N/C

Answer 1

Answer: 2.4*10‐²⁴ N/C

Explanation:

Electric field intensity is the force acted per unit charge on a given surface

E = F/Q

Data

F = 3.0*10‐¹⁹ N

Q = 1.25 * 10-¹⁹ C

E = 3.0 * 10-⁹ / 1.25*10-¹⁹

E = 2.4*10¹⁰ N/C