Semiconductor Devices Test

Result

Semiconductor Devices Test - 76

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Weekly Quiz Competition

Question 1
4 / -1

Assertion The temperature coefficient of resistance is positive for metals and negative for P-type semiconductor.
Reason The effective charge carriers in metals are negatively charged whereas in P-type semiconductor they are positively charged.

A
If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

B
If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

C
If Assertion is true but Reason is false

D
If the Assertion and Reason both are false

E
If Assertion is false but Reason is true
Question 2
4 / -1

Assertion Electron has higher mobility than hole in a semiconductor.
Reason Mass of electron is less than the mass of hole.

A
If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

B
If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

C
If Assertion is true but Reason is false

D
If the Assertion and Reason both are false

E
If Assertion is false but Reason is true

Solution
Question 3
4 / -1

Assertion An N-type semiconductor has a large number of electrons but still it is electrically neutral.
Reason An N-type semiconductor is obtained by doping an intrinsic semiconductor with a pentavalent impurity.

A
If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

B
If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

C
If Assertion is true but Reason is false

D
If the Assertion and Reason both are false

E
If Assertion is false but Reason is true
Question 4
4 / -1

Assertion Light emitting diode (LED) emits spontaneous radiation.
Reason LED are forward biased p-n junctions.

A
If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

B
If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

C
If Assertion is true but Reason is false

D
If the Assertion and Reason both are false

E
If Assertion is false but Reason is true

Solution
Question 5
4 / -1

Assertion Silicon is preferred over germanium for making semiconductor devices.
Reason The energy gap for germanium is more than the energy gap of silicon.

A
If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

B
If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

C
If Assertion is true but Reason is false

D
If the Assertion and Reason both are false

E
If Assertion is false but Reason is true
Question 6
4 / -1

Assertion We can measure the potential barrier of a PN-junction by putting a sensitive voltmeter across its terminals.
Reason The current through the PN-junction is not same in forward and reversed bias

A
If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

B
If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

C
If Assertion is true but Reason is false

D
If the Assertion and Reason both are false

E
If Assertion is false but Reason is true
Question 7
4 / -1

Assertion The energy gap between the valence band and conduction band is greater in silicon than in germanium.
Reason Thermal energy produces fewer minority carriers in silicon than in germanium.

A
If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

B
If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

C
If Assertion is true but Reason is false

D
If the Assertion and Reason both are false

E
If Assertion is false but Reason is true
Question 8
4 / -1

Assertion Two P-N junction diodes placed back to back, will work as a NPN transistor.
Reason The P-region of two PN-junction diodes back to back will form the base of NPN transistor

A
If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

B
If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

C
If Assertion is true but Reason is false

D
If the Assertion and Reason both are false

E
If Assertion is false but Reason is true
Question 9
4 / -1

Assertion In transistor common emitter mode as an amplifier is preferred over common base mode.
Reason In common emitter mode the input signal is connected in series with the voltage applied to the base emitter junction.

A
If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

B
If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

C
If Assertion is true but Reason is false

D
If the Assertion and Reason both are false

E
If Assertion is false but Reason is true
Question 10
4 / -1

Assertion The dominant mechanism for motion of charge carriers in forward and reverse biased silicon P-N junction are drift in both forward and reverse bias.
Reason In reverse biasing, no current flows through the junction

A
If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

B
If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

C
If Assertion is true but Reason is false

D
If the Assertion and Reason both are false

E
If Assertion is false but Reason is true

User

Question Analysis

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My Perfomance

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Re-Attempt Weekly Quiz Competition

Semiconductor Devices Test - 76

Result

Semiconductor Devices Test - 76

Score

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Rank

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SHARING IS CARING

Question 1

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

If Assertion is true but Reason is false

If the Assertion and Reason both are false

If Assertion is false but Reason is true

Question 2

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

If Assertion is true but Reason is false

If the Assertion and Reason both are false

If Assertion is false but Reason is true

Solution

Question 3

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

If Assertion is true but Reason is false

If the Assertion and Reason both are false

If Assertion is false but Reason is true

Question 4

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

If Assertion is true but Reason is false

If the Assertion and Reason both are false

If Assertion is false but Reason is true

Solution

Question 5

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

If Assertion is true but Reason is false

If the Assertion and Reason both are false

If Assertion is false but Reason is true

Question 6

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

If Assertion is true but Reason is false

If the Assertion and Reason both are false

If Assertion is false but Reason is true

Question 7

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

If Assertion is true but Reason is false

If the Assertion and Reason both are false

If Assertion is false but Reason is true

Question 8

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

If Assertion is true but Reason is false

If the Assertion and Reason both are false

If Assertion is false but Reason is true

Question 9

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

If Assertion is true but Reason is false

If the Assertion and Reason both are false

If Assertion is false but Reason is true

Question 10

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion

If Assertion is true but Reason is false

If the Assertion and Reason both are false

If Assertion is false but Reason is true

User

Question Analysis

My Perfomance

Score

-

Rank

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