177. Two point electric charges $q_1 = 20\,\mu\text{C}$ and $q_2 = -5\,\mu\text{C}$ are fixed at a distance of 30 cm from each other. The electric charge $q_2 = 15\,\mu\text{C}$ is placed at a point in this medium such that the net electric force on it is zero. In this situation, how many newtons is the electric force exerted on $q_2$? $\left(k = 9\times10^9\,\dfrac{\text{N}\cdot\text{m}^2}{\text{C}^2}\right)$ (1) $1.5$ (2) $2.5$ (3) $3$ (4) $5$
\textbf{177.} Two point electric charges $q_1 = 20\,\mu\text{C}$ and $q_2 = -5\,\mu\text{C}$ are fixed at a distance of 30 cm from each other. The electric charge $q_2 = 15\,\mu\text{C}$ is placed at a point in this medium such that the net electric force on it is zero.
In this situation, how many newtons is the electric force exerted on $q_2$? $\left(k = 9\times10^9\,\dfrac{\text{N}\cdot\text{m}^2}{\text{C}^2}\right)$
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(1) $1.5$ \quad (2) $2.5$ \quad (3) $3$ \quad (4) $5$
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