MCQ
If a variable frequency ac source is connected to a capacitor then with decrease in frequency the displacement current will:
- AIncrease
- BDecrease
- CRemains constant
- DFirst decrease then increase
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
How should people wearing spectacles work with a microscope
|
(a) They cannot use the microscope at all |
(b) They should keep on wearing their spectacles |
|
(c) They should take off spectacles |
(d) (b) and (c) is both way |
The electric field due to a dipole at a distance r on its axis is
|
(a) Directly proportional to |
(b) Inversely proportional to |
|
(c) Directly proportional to |
(d) Inversely proportional to |
A source voltage of 8V drives the diode in fig. through a current-limiting resistor of 100 ohm. Then the magnitude of the slope load line on the V-I characteristics of the diode is
|
(a) 0.01 |
(b) 100 |
(c) 0.08 |
(d) 12.5 |