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Worksheetsecen 20044-1
Total questions: 10
Worksheet time: 21mins
This part exists in a pentode but not on any other type of vacuum tube.
Grid
Suppressor
Screen
Plate
It is the introduction of impurities to an otherwise pure material to alter the concentration of electrons and/or holes.
(a)
If 3.8% of holes from the emitter recombine at the base, what is the amplification factor of the transistor assuming that it is in a common-base configuration?
(a)
This transistor configuration is utilized for impedance matching.
Common-base
Common-collector
Common-emitter
Not enough information given
For a common-emitter configuration, the input current is...
Ib
Ic
Ie
Vbb
Given an NPN transistor in a common-base configuration, what operating region is the transistor in when the voltage at the input is +Vbe and the voltage at the output loop is Vbc?
Active Region
Avalanche Region
Saturation Region
Cut-off Region
The resistance of a highly-doped material is _ compared to the resistance of a lightly-doped material.
(a)
According to base width modulation or Early effect, increasing the reverse-bias voltage applied to J2 will _ the chance of recombination at the base.
(a)
Find the value of β if only 0.5% of carriers recombine at the base.
(a)
A transistor enters the saturation region when...
J1 is reverse-biased
J2 is forward-biased
J1 is forward-biased
J2 is reverse-biased
