MCQ
An electric dipole placed in a non-uniform electric field can experience:
- AA force but not a torque.
- BA torque but not a force.
- CAlways a force and a torque.
- DNeither a force nor a torque.
✓
Answer
- Always a force and a torque.
Explanation:
Electric dipole,
Two equal and opposite charges seperated by small distance.
Wherein,
As the dipole will feel two forces which are although opposite but not equal.
A net force will be there and as these forces act at different points of a body. A torque is also there.
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
Consider the situation shown in figure. The wire AB is slid on the fixed rails with a constant velocity. If the wire AB is replaced by a semicircular wire, the magnitude of the induced current will:
- Increase.
- Remain the same.
- Decrease.
- Increase or decrease depending on whether the semicircle bulges towards the resistance or away from it.
The refractive index of water and glass with respect to air is 1.3 and 1.5 respectively. Then the refractive index of glass with respect to water is
|
(a) |
(b) |
(c) |
(d) |
If the separation between slits in Young’s double slit experiment is reduced to 
the fringe width becomes n times. The value of n is
|
(a) 3 |
(b) |
(c) 9 |
(d) |
Four lowest energy levels of H-atom are shown in the figure. The number of possible emission lines would be
|
(a) 3 |
(b) 4 |
(c) 5 |
(d) 6 |
The fact that electric charge is always an integral multiple of e is termed as:
If heat is supplied to a solid, its temperature:
- Must increase.
- May increase.
- May remain constant.
- May decrease.
Charge on α -particle is
|
(a) |
(b) 1.6 |
(c) 3.2 |
(d) 6.4 |
Electromotive force is the force, which is able to maintain a constant
|
(a) Current |
(b) Resistance |
(c) Power |
(d) Potential difference |
The value of $\frac{1}{4\pi\in_{0}}$
→Photoelectric effect shows: