MCQ
The property between two charged ebonite rods is:
- AAttraction
- BRepulsion
- CBoth
- DNone
✓
Answer
- Repulsion
Explanation:
If two ebonite rods A and B are separately rubbed with fur and then they are brought near each other, they repel each other.
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
A magnetic field of 2 × 10– 2 T acts at right angles to a coil of area 100 cm2 with 50 turns. The average emf induced in the coil is 0.1 V, when it is removed from the field in time t. The value of t is
|
(a) 0.1 sec |
(b) 0.01 sec |
(c) 1 sec |
(d) 20 sec |
A full wave rectifier circuit along with the input and output voltages is shown in the figure
On heating a liquid, the refractive index generally (a) Decreases (b) Increases or decreases depending on the rate of heating (c) Does not change (d) Increases Two parallel pillars are 11 km away from an observer. The minimum distance between the pillars so that they can be seen separately will be (a) 3.2 m (b) 20.8 m (c) 91.5 m (d) 183 m A particle of mass m and charge q is placed at rest in a uniform electric field E and then released. The kinetic energy attained by the particle after moving a distance y is (a) (b) (c) qEy (d ) An electron moving in a circular orbit of radius r makes n rotation per second. The magnetic field produced at the centre has a magnitude of (a) (b) (c) (d) Zero Which of the following would you prefer to use while reading small letters found in a dictionary? Time period of a freely suspended magnet does not depend upon An electric dipole is placed along the x - axis at the origin O. A point P is at a distance of 20 cm from this origin such that OP makes an angle (a) (b) (c) (d) 
→→
→Internal resistance of the cell is:→
→
→
→→
(a) Length of the magnet
(b) Pole strength of the magnet
(c) Horizontal component of earth's magnetic field
(d) Length of the suspension thread
→
with the x-axis. If the electric field at P makes an angle θ with the x-axis, the value of θ would be
