What is the electric potential at point P, located at the center of the square of charged particles shown in Fig. 24-16a? The distanced is 1.3 m, and the charges are
`q_(1) = + 12 nC, " "q_(3) = +31 nC`,
`q_(2) = - 24 nC," "q_(4)=+17 nC.`

Explanation

To find the electric potential at point P, located at the center of the square formed by the charged particles, we can follow these steps:

### Step 1: Identify the Charges and Their Values
The charges are given as:
- \( q_1 = +12 \, \text{nC} \)
- \( q_2 = -24 \, \text{nC} \)
- \( q_3 = +31 \, \text{nC} \)
- \( q_4 = +17 \, \text{nC} \)
...