Those are not going to be discussed, for the most part, in this course, however. q is the symbol used to represent charge, while n is a positive or negative integer, and e is the electronic charge, 1.60 x 10-19 Coulombs.
Q. What is the potential difference VB VA in the circuit?
The potential difference VB – VA for the circuit shown in the figure is 24kV .
Table of Contents
- Q. What is the potential difference VB VA in the circuit?
- Q. Is the potential difference Va VB positive negative or zero?
- Q. Is the electric potential difference positive negative or zero?
- Q. What is isolated conducting plane?
- Q. How many electric lines of force are linked with 1c?
- Q. Which of the following statement is correct the electric field at a point is a always continuous B continuous if there is a charge at that point C discontinuous only if there is a negative charge at that point D discontinuous if there is a charge at that point?
- Q. Which of the following statement is correct electric field is zero?
- Q. Is electric field is always continuous?
- Q. Are electric field lines closed curves?
Q. Is the potential difference Va VB positive negative or zero?
With increase in distance, potential due to point charge decreases. So, i) VA – VB is positive when charge Q is positive. ii) VA – VB is negative.
Q. Is the electric potential difference positive negative or zero?
Without any other information, we cannot determine what the value of the constant is. It may be equal to zero, or it may not. A small test charge –q0 travels from point X to point Y along the circular arc as shown. r So, the electric potential difference ΔVXY is positive.
Q. What is isolated conducting plane?
(a) If a point positive charge is placed near an isolated conducting plane, free electrons are attracted towards the positive charge. Result of this some negative charge develops on the surface of the plane towards the positive charge side and an equal positive charge develops on opposite side of the plane.
Q. How many electric lines of force are linked with 1c?
The number of lines of force originating from a charge of 1 C is equal to the Electric flux through a closed surface enclosing a charge of 1 C . N = q/EoN = 1/8.85 × 10^-12N = 1.29 × 10^11.
Q. Which of the following statement is correct the electric field at a point is a always continuous B continuous if there is a charge at that point C discontinuous only if there is a negative charge at that point D discontinuous if there is a charge at that point?
Explanation: An electric field will be continuous because of any charge, if in the medium there is no other charge available. If there is a particular charge at a point under the consideration then, it will be discontinuous. Hence, the correct option is (b).
Q. Which of the following statement is correct electric field is zero?
a. True. If E is zero at each point, then net flux will be zero.
Q. Is electric field is always continuous?
The electric field in a region is always continuous provided that there is no charge at the point of consideration. If a charge is present at that point, then the field is discontinuous there, Option (B,D) are correct.
Q. Are electric field lines closed curves?
The electric field lines can never form closed loops, as line can never start and end on the same charge. These field lines always flow from higher potential to lower potential.
