Same magnitude and both have a positive charge
Step-by-step explanation:
- The charge is positive because the lines are leaving away from the charge
- This is same for both a and b charges
- The relative magnitude is shown by the proximity/separation (density of the lines)
- The proximity of the lines generated by charge a is equal to the proximity of the lines generated by charge b
- The magnitudes of both the lines are the same
- Both charges a and b have the same magnitude and positive charge