Two point charges qA = 3μC and qB = -3μC are located 2 m apart in vaccum. The electric field at midpoint of the line joining the two charges is:

5.4 × 104 N/C 1.35 × 104 N/C 2.7 × 104 N/C Zero

5.4 × 104 N/C

$\text{Electric field due to two charges at mid point are in same direction}$ $ E = 2\times \frac{Q}{4\pi \epsilon_0 r^2} = \frac{2\times 9\times 10^9 \times 3 \times 10^{-6}}{1^2} = 5.4 \times 10^4 N/C$