Electric Potential and Potential Difference
Physics ⇒ Electricity and Magnetism
Electric Potential and Potential Difference starts at 10 and continues till grade 12.
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Describe the difference between electric potential and electric potential energy.
Describe what is meant by the term 'potential difference'.
Explain why no work is done in moving a charge along an equipotential surface.
Explain why the electric potential decreases in the direction of the electric field.
Which of the following best defines electric potential at a point? (1) The work done in moving a unit positive charge from infinity to that point. (2) The force experienced by a unit positive charge at that point. (3) The energy stored per unit charge at that point. (4) The rate of flow of charge at that point.
Which of the following best describes the potential difference across the terminals of an ideal battery? (1) It is always zero. (2) It is equal to the emf of the battery. (3) It depends on the current. (4) It is always negative.
Which of the following is NOT a property of equipotential surfaces? (1) They are always perpendicular to electric field lines. (2) No work is done in moving a charge along an equipotential surface. (3) They can intersect each other. (4) The potential is constant at every point on the surface.
Which of the following is NOT a unit of electric potential? (1) Joule/Coulomb (2) Volt (3) Newton/Coulomb (4) V
Fill in the blank: The potential at a distance r from a point charge Q is given by V = ________.
Fill in the blank: The potential difference between two points is equal to the ________ per unit charge.
Fill in the blank: The work done in moving a charge between two points having the same electric potential is ________.
The SI unit of electric potential is ________.
A proton is moved from a point of 50 V to a point of 100 V. Does it gain or lose potential energy?
State whether the following statement is true or false: The electric potential at the center of a charged conducting sphere is equal to its potential at the surface.
True or False: Electric potential is a scalar quantity.
True or False: The electric potential at infinity is always taken as zero by convention.
