In diode, when there is saturation current, the plate resistance (
is
|
(a) Zero |
(b) Infinite |
|
(c) Some finite quantity |
(d) Data is insufficient |
(b) Infinite
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The pole strength of a bar magnet is 48 ampere-metre and the distance between its poles is 25 cm. The moment of the couple by which it can be placed at an angle of 30o with the uniform magnetic intensity of flux density 0.15 Newton /ampere-metre will be
|
(a) 12 Newton × metre |
(b) 18 Newton × metre |
|
(c) 0.9 Newton × metre |
(d) None of the above |
$\text{F}=\frac{\text{K.}(\text{q}_1\times\text{q}_2)}{\text{r}^2}$
This is given by which law?The ray diagram could be correct
|
(a) If |
(b) If |
|
(c) If |
(d) Under no circumstances |
The current in a conductor varies with time t as 
where I is in ampere and t in seconds. Electric charge flowing through a section of the conductor during t = 2 sec to t = 3 sec is
|
(a) 10 C |
(b) 24 C |
(c) 33 C |
(d) 44 C |
A free neutron decays into a proton, an electron and
|
(a) A neutrino |
(b) An antineutrino |
(c) An alpha particle |
(d) A beta particle |
In the disintegration series 
the values of Z and A respectively will be
|
(a) 92, 236 |
(b) 88, 230 |
(c) 90, 234 |
(d) 91, 234 |
