MCQ
What is the S.I. unit of electric potential?
- AAmpere
- BVolt
- CVolt.m
- DCoulomb
✓
Answer
- Volt
Explanation:
An electric potential (also called the electric field potential or the electrostatic potential) is the amount of electric potential energy that a unitary point electric charge would have if located at any point of space, and is equal to the work done by an electric field in carrying a unit positive charge from infinity to that point.
This value can be calculated in either a static (time-invariant) or a dynamic (varying with time) electric field at a specific time in units of joules per coulomb, or volts (V). The electric potential at infinity is assumed to be zero.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In what form is energy present in the capacitor?
In a charged capacitor, the energy is stored in:
What is the radius of iodine atom (at. no. 53, mass number 126)
|
(a) 2.5 |
(b) 2.5 |
(c) 7 |
(d) 7 |
Statement A: With an increase in the frequency of AC supply inductive reactance increases.
Statement B: With an increase in the frequency of AC supply capacitive reactance increase.
Statement B: With an increase in the frequency of AC supply capacitive reactance increase.
Consider a uniform electric field in the $\hat{\text{Z}}$ direction. The potential is a constant:
→The permeability of a paramagnetic substance is:
Pick out the application of potentiometer from the following.
If a magnet of length 10 cm and pole strength 40 A-m is placed at an angle of 45o in an uniform induction field of intensity 2 × 10–4 T, the couple acting on it is
|
(a) 0.5656 × 10–4 N-m |
(b) 0.5656 × 10–3N-m |
(c) 0.656 × 10–4 N-m |
(d) 0.656 × 10–5 N-m |
In Young's double slit experiment, white light is used. The separation between the slits is b. The screen is at a distance d (d>> b) from the slits. Some wavelengths are missing exactly in front of one slit. These wavelengths are
|
(a) λ = |
(b) λ = |
(c) λ = |
(d) a, b |
The free end of a simple pendulum is attached to the ceiling of a box. The box is taken to a height and the pendulum is oscillated. When the bob is at its lowest point, the box is released to fall freely. As seen from the box during this period, the bob will:
- Continue its oscillation as before.
- Stop.
- Will go in a circular path.
- Move on a straight line.