Question

At table tennis ball has a positive charge of 4.50 × 10-8 coulombs. It experiences a force of 2.72 × 10-3 newtons due to an electric field. What is the strength of the electric field?

2.72 × 10-10 newtons/coulomb

4.50 × 10-11 newtons/coulomb

6.04 × 104 newtons/coulomb

1.24 × 105 newtons/coulomb

Answer 1

The answer is 6.04 × 10^4 N/C.
Formula for the strength of the electric field is:
E = F/q
E = 2.72 × 10^-3 N/4.50 × 10^-8 C
E = 0.60444 × 10^5 N/C
E = 6.04 × 10^4 N/C

Answer 2

Strength of electric field, E = 6.04 × 10⁴ newtons/coulomb

Step-by-step explanation:

It is given that,

Charge on tennis ball,
`q=4.5* 10^(-8)\ C`

It experiences a force of
`F=2.72* 10^(-3)\ N`

The electric force is given by the product of electric charge and magnitude of electric field.

i.e.

F = q × E

So,
`E=(F)/(q)`

`E=(2.72* 10^(-3))/(4.5* 10^(-8))`

E = 60444.5 N/C

or

`E=6.04* 10^4\ N/C`

The strength of the electric field is
`6.04* 10^4\ N/C`.Hence, the correct option is (C) " 6.04 × 10⁴ newtons/coulomb "