Two points charges, +5µC and -5µC are placed at points A and B, respectively, which are separated by a distance 2d. What is the electric potential at the midpoint M of the line joining A and B?
- 2kQ/d
- kQ/d
- -kQ/d
- zero
Explanation
The electric potential at a point due to a point charge
The formula gives Q:𝑉=𝑘/𝑄𝑟
Where:
V is the electric potential,
k is Coulomb's constant,
Q is the charge, and
r is the distance from the charge to the point where the potential is being calculated.
In this case, there are two charges: +5μC at point A and −5μC at point B.
The electric potential is a scalar quantity, meaning it can simply be added algebraically.
Related MCQs
بلی کے خاندان کی سب سے بڑی نسل کونسی ہے؟
- Leopard
- Lion
- Tiger
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
کارٹوگرافی کیا ہے؟
- Art of dancing
- Art of making maps and charts
- Art of drawing sketches
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
ثقافتی منظرنامے کا تصور کس جغرافیہ دان سے قریبی تعلق رکھتا ہے؟
- Carl Sauer
- Alfred Wegener
- William Morris Davis
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
درجہ بندی اور حجم کا اصول کن چیزوں کے درمیان تعلق واضح کرتا ہے؟
- Mountains and valleys
- Rainfall and temperature
- Population size and rank of cities
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
مرکزی مقام کا نظریہ کس نے پیش کیا تھا؟
- Walter Christaller
- Alfred Weber
- August Lösch
- None of these