The electrical circuit used to get smooth dc output from a rectifier circuit is called
| (a) Oscillator | (b) Filter | (c) Amplifier | (d) Logic gates |
The electrical circuit used to get smooth dc output from a rectifier circuit is called
| (a) Oscillator | (b) Filter | (c) Amplifier | (d) Logic gates |
(b) Filter
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
The electromagnetic waves do not transport
| (a) Energy | (b) Charge | (c) Momentum | (d) Information |
The unit of electric permittivity is
|
(a) Volt/m2 |
(b) Joule/coulomb |
(c) Farad/m |
(d) Henry/m |
In a hypothetical Bohr hydrogen, the mass of the electron is doubled. The energy
and the radius
of the first orbit will be (
is the Bohr radius)
|
(a) |
(b) |
|
(c) |
(d) |
The refractive indices of violet and red light are 1.54 and 1.52 respectively. If the angle of prism is 10°, then the angular dispersion is
|
(a) 0.02 |
(b) 0.2 |
(c) 3.06 |
(d) 30.6 |
The relative permeability ( of a ferromagnetic substance varies with temperature (T) according to the curve
|
(a) A |
(b) B |
(c) C |
(d) D |
Name of the India's first nuclear reactor is
|
(a) RAMBHA |
(b) MENAKA |
(c) URVASI |
(d) APSARA |
When cells are connected in parallel, then
|
(a) The current decreases |
(b) The current increases |
|
(c) The e.m.f. increases |
(d) The e.m.f. decreases |