In a properly biased NPN transistor, most of the electrons from the emitter recombine with holes in the base. They recombine in the emitter itself and pass through the base to the collector. They are stopped by the junction barrier.
In a transistor, the relation among emitter current, base current, and collector current is: A. Ic - Ie + Ib; B. Ie - Ib + Ic; C. Ie - Ic - Ib; D. Ie + Ib - Ic.
A transistor is known as a bipolar transistor because it has: A. Electrons; B. Holes; C. Electrons and holes; D. None of the above.
In an NPN or PNP transistor:
A. Ic > Ie; B. Ie > Ic; C. Ie = Ic; D. None of the above.
The base of an NPN transistor is: A. Heavily doped; B. Lightly doped; C. Medium doped; D. Doped by pentavalent material.
In a transistor, the value of a (β) is 100. The value of β is: A. 0.01; B. 0.1; C. 0.99; D. 1.
The figure represents a: A. PNP transistor; B. NPN transistor; C. Unipolar transistor; D. None of the above.