When the distance between the charged particles is halved, the force between them becomes
|
(a) One-fourth |
(b) Half |
(c) Double |
(d) Four times |
When the distance between the charged particles is halved, the force between them becomes
|
(a) One-fourth |
(b) Half |
(c) Double |
(d) Four times |
(d) Four times
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The self inductance of a straight conductor is
|
(a) Zero |
(b) Very large |
(c) Infinity |
(d) Very small |
The angle of dip at a place is 40.6o and the intensity of the vertical component of the earth's magnetic field V = 6
Tesla. The total intensity of the earth's magnetic field (I) at this place is
|
(a) 7 |
(b) 6 |
(c) 5 |
(d) 9.2 |
A beam of electron is used in an YDSE experiment. The slit width is d. When the velocity of electron is increased, then
|
(a) No interference is observed |
(b) Fringe width increases |
|
(c) Fringe width decreases |
(d) Fringe width remains same |
Audio signal cannot be transmitted because
|
(a) The signal has more noise |
|
(b) The signal cannot be amplified for distance communication |
|
(c) The transmitting antenna length is very small to design |
|
(d) The transmitting antenna length is very large and impracticable |
$\text{I}_0$
$\frac{\text{I}_0}{4}$
$\frac{\text{I}_0}{2}$
$4\text{I}_0$
The curve between charge density and distance near P-N junction will be
|
(a)
|
(b)
|
(c)
|
(d)
|
Red light is used as danger signal because it is: