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A charge Q2 = 8.854 × 10-9 C is located in vacuum at P2 (2, 3, 1). The force on Q2 due to a charge Q1 = 4π × 10-3 C at P1 (2, 2, 1) is:
(Note: All the coordinates are measured in meters ax, ay, and az are unit vectors in X, Y, and Z direction respectively.)
  • a)
    ayN
  • b)
    -ayN
  • c)
    4ax + 5ay + 2a,N
  • d)
    -4ax – 5ay – 2azN
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A charge Q2 = 8.854 × 10-9 C is located in vacuum at P2 (2, 3, 1...
The given value, Q2 = 8.854, seems to be incomplete. It appears to be a charge value, but it lacks a unit. In order to properly interpret and use this value, the unit associated with the charge (such as coulombs) needs to be provided.
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Community Answer
A charge Q2 = 8.854 × 10-9 C is located in vacuum at P2 (2, 3, 1...
Concept:
The force acting on a point charge because of another point charge is given as:
 (Where âr is a unit vector in the direction of the force)
Calculation:
Given Q1 = 4π × 10-3 C
Q2 = 8.854 × 10-9 C

Since, we are asked to find the force on Q2 due to Q1, the direction of the force 
= âr   

So, the Force on Q2 due to Q1 will be:

= ay N
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A charge Q2 = 8.854 × 10-9 C is located in vacuum at P2 (2, 3, 1). The force on Q2 due to a charge Q1 = 4π × 10-3 C at P1 (2, 2, 1) is:(Note: All the coordinates are measured in meters ax, ay, and az are unit vectors in X, Y, and Z direction respectively.)a)ayNb)-ayNc)4ax + 5ay + 2a,Nd)-4ax – 5ay – 2azNCorrect answer is option 'A'. Can you explain this answer?
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