Which statement is the correct representation of these electric field lines?

a. both sources are positively charged.

b. both sources are negatively charged.

c. source a is negatively charged and source b is positively charged.

d. source a is positively charged and source b is negatively charged.

C. Source A is negatively charged and source B is positively charged.

Explanation:

As per the properties of electric field lines we know that electric field lines originated out from the positive charge and then terminated back into the negative charge.

As per the given presentation of field lines we can see that field originated out from charge placed at B and these field lines again terminated into the charge placed at A.

So here the charge must be positive at position of B and it is negative at position of A.

so correct answer will be

C. Source A is negatively charged and source B is positively charged.

0 = 0.40 / 0 = 0

= 0.20 = 9.80 ⁄2 =?

=0 , = = 0.20 =0.50 0 0.40 ⁄

=0−122 =0−12(9.80 ⁄2)(0.50)2 =1.2