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ISRO EC Quiz 4 : Electronic Devices
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Question 1
The power rating of a 470 ohm resistor carrying a current of 40mA should be
Question 2
The concentration of minority carriers in an extrinsic semiconductor under equilibrium is:
Question 3
Which of the following option will provide the least resistance across the bulb?
Question 4
If C denotes the counterclockwise unit circle, the value of the contour integral 
is ______
is ______Question 5
The ratio of the mobility to the diffusion coefficient in a semiconductor has
Question 6
The desirable properties of transformer core material are
Question 7
For a BJT, the common – base current gain 𝛼 = 0.98 and the collector-base junction reverse bias saturation current 𝐼𝐶0 = 0.6𝜇𝐴. This BJT is connected in the common emitter mode and operated in the active region with a base drive current 𝐼𝐵 = 20𝜇𝐴. The collector current 𝐼𝐶 for this mode of operation is.
Question 8
An electromagnetic wave incident on a perfect conductor is:
Question 9
Measurement of Hall coefficient enables the determination of:
Question 10
Which of the following is true?
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Jun 19ESE & GATE EC
