For a transistor, in a common emitter arrangement, the alternating current gain b is given by
|
(a) β = |
(b) β = |
(c) β = 
|
(d) β = 
|
(a) β = 
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
In a wire of circular cross-section with radius r, free electrons travel with a drift velocity V when a current I flows through the wire. What is the current in another wire of half the radius and of the same material when the drift velocity is 2V
|
(a) 2I |
(b) I |
(c) I/2 |
(d) I/4 |
Which of the following represents an infrared wavelength
|
(a) |
(b) |
(c) |
(d) |
4 eV is the energy of the incident photon and the work function in 2eV. What is the stopping potential
|
(a) 2V |
(b) 4V |
(c) 6V |
(d) 2 |
