The equivalent capacitance in the circuit between A and B will be
|
(a) 1 μF |
(b) 2 μF |
(c) 3 μF |
(d) |
The equivalent capacitance in the circuit between A and B will be
|
(a) 1 μF |
(b) 2 μF |
(c) 3 μF |
(d) |
(c) 3 μF
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
1A current flows through an infinitely long straight wire. The magnetic field produced at a point 1 metres away from it is
|
(a) 2 |
(b) |
(c) 2 |
(d) 2π |
The magnetic induction in the region between the pole faces of an electromagnet is 0.7 weber/m2. The induced e.m.f. in a straight conductor 10 cm long, perpendicular to B and moving perpendicular both to magnetic induction and its own length with a velocity 2 m/sec is
|
(a) 0.08 V |
(b) 0.14 V |
(c) 0.35 V |
(d) 0.07 V |
The electrical resistance of depletion layer is large because
| (a) It has no charge carriers |
|
(b) It has a large number of charge carriers |
| (c) It contains electrons as charge carriers |
|
(d) It has holes as charge carriers |
In the nuclear reaction
what does X stand for
|
(a) An electron |
(b) A proton |
(c) A neutron |
(d) A neutrino |
Whenever a hydrogen atom emits a photon in the Balmer series
|
(a) It need not emit any more photon |
|
(b) It may emit another photon in the Paschen series |
|
(c) It must emit another photon in the Lyman series |
|
(d) It may emit another photon in the Balmer series |
5 cm long solenoid having 10 ohm resistance and 5 mH inductance is joined to a 10 volt battery. At steady state the current through the solenoid in ampere will be
|
(a) 5 |
(b) 1 |
(c) 2 |
(d) Zero |