Concept explainers
The two charges in Figure P24.12 are separated by a distance d = 2.00 cm, and Q = +5.00 nC. Find (a) the electric potential at A, (b) the electric potential at B, and (c) the electric potential difference between B and A.
Figure P24.12
(a)
Answer to Problem 25.18P
Explanation of Solution
Given Info: Distance between point
Explanation:
The diagram for the given figure having point
Figure (1)
Write the expression to find out electric potential at point
Here,
Formula to calculate electric potential at point
Formula to calculate electric potential at point
Substitute
Write the formula of Pythagoras theorem to calculate diagonal of square.
Substitute
Substitute
Thus, electric potential at point
Conclusion:
Therefore, electric potential at point
(b)
Answer to Problem 25.18P
Explanation of Solution
Write the expression to find out electric potential at point
Here,
Formula to calculate electric potential at point
Formula to calculate electric potential at point
Substitute
Here,
Substitute
Thus, electric potential at point B is
Conclusion:
Therefore, the electric potential at point B due to charge at point 1 and charge at point 2 is
(c)
Answer to Problem 25.18P
Explanation of Solution
Write the expression to find out electric potential difference between
Here,
Substitute
Hence, electric potential difference between point
Conclusion:
Therefore, electric potential difference between point
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Chapter 25 Solutions
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