3. Two charges, charge A (63 µC) and charge B (52 µC), are separated by some distance.
The magnitude of the electric force on charge B (due to its interaction with charge A) is 4.9 N. What is the magnitude of the electric field at the location of charge B?
(a) 2.5 × 10<sup>4</sup> N/C
(b) 6.7 × 10<sup>5</sup> N/C
(c) 1.1 × 10<sup>5</sup> N/C
(d) 7.8 × 10<sup>4</sup> N/C
(e) 9.4 × 10<sup>4</sup> N/C