Understanding Electrostatic Potential
Trending Questions
Q.
Electron-Volt is a unit of?
Potential
Energy
- Power
- Charge
Q. An infinite number of charges, each equal to q, are placed along the x-axis at x =1, x=2, x=8, ... and so on. The potential at the point x =0 due to this set of charges is
- qπϵ0
- q2πϵ0
- q3πϵ0
- q4πϵ0
Q. A soap bubble of radius r is charged to a potential V. If the radius is increased to n r, the potential on the bubble will become
- nV
- n2V
- Vn
- Vn2
Q. Work done in displacing 5C charge through .5m is 10J. The potential difference between the two points is
- 2V
- 0.25V
- 1V
- 25V
Q. If we say that the electric potential of a point in space is 10 V, what do you understand from it? (Take potential at infinity as 0V)
- The amount of work done by external agent, in bringing a 10 C charge from infinity to that point (slowly) is 10J
- The amount of work done by external agent, in bringing a unit positive charge from infinity to that point (slowly) is 10 J
- The net magnitude of force acting on a unit positive charge at that point is 10 N
- The net work done to being a unit positive chargefrom infinity to that point (slowly) is 10 J
Q. Electric field in space is given as →E=−2x2^i+y^j−2z^k. If potential of point P(3, 2, 0) is 8 volt, then potential at origin is:
- 8 V
- 16 V
- −8 V
- −16 V
Q.
Think of the term that fits into or defines the given statement and fill in the given boxes with the correct spellings of that term.
The smallest unit of energy is _______________.
Q. The potential of a point is 10V with respect to infinity. "If the potential of infinity was taken to be 5V instead of zero the potential of A would be unchanged"-Is this statement correct?
- True
- False
Q. A positively charged conductor
- Is always at +ve potential
- Is always at zero potential
- Is always at negative potential
- May be at +ve, zero or -ve potential
