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
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Current in the circuit will be
|
(a) |
(b) |
(c) |
(d) |
At a place, if the earth's horizontal and vertical components of magnetic fields are equal, then the angle of dip will be
| (a) 30° | (b) 90° | (c) 45° | (d) 0° |
In the white light of sun, maximum scattering by the air molecules present in the earth's atmosphere is for:
A parallel plate capacitor has a capacity C. The separation between the plates is doubled and a dielectric medium is introduced between the plates. If the capacity now becomes 2C, the dielectric constant of the medium is
|
(a) 2 |
(b) 1 |
(c) 4 |
(d) 8 |
A concave mirror gives an image three times as large as the object placed at a distance of 20 cm from it. For the image to be real, the focal length should be
|
(a) 10 cm |
(b) 15 cm |
(c) 20 cm |
(d) 30 cm |
