A semiconductor has ………… temperature coefficient of resistance.

by

1 Answer

Answer :

A semiconductor has Negative temperature coefficient of resistance.

by

Related questions

As the doping to a pure semiconductor increases, the bulk resistance of the semiconductor ………..

Last Answer : As the doping to a pure semiconductor increases, the bulk resistance of the semiconductor Decreases.

When a pure semiconductor is heated, its resistance …………..

Last Answer : When a pure semiconductor is heated, its resistance Goes down.

At absolute temperature, an intrinsic semiconductor has ……….

Last Answer : At absolute temperature, an intrinsic semiconductor has No holes or free electrons.

At room temperature, an intrinsic semiconductor has ……….

Last Answer : At room temperature, an intrinsic semiconductor has A few free electrons and holes.

When the temperature of an extrinsic semiconductor is increased, the pronounced effect is on……

Last Answer : When the temperature of an extrinsic semiconductor is increased, the pronounced effect is on Minority carriers.

A semiconductor device made out of a material having very high temperature coefficient of resistance is

Description : A semiconductor device made out of a material having very high temperature coefficient of resistance is

Last Answer : A semiconductor device made out of a material having very high temperature coefficient of resistance is Thermistor

what is the temperature coefficient of Resistance of semiconductor ?

Description : what is the temperature coefficient of Resistance of semiconductor ?

Last Answer : semiconductors have negative temperature coefficient of resistance. means as the temperature increases resistance decreases.

In a single crystal of an intrinsic semiconductor, the number of free carriers at the Fermi level at room

Description : In a single crystal of an intrinsic semiconductor, the number of free carriers at the Fermi level at room temperature is: A) Half the total number of electrons in the crystal B) Zero C) Half the number of atoms in the crystal D) Half the number of free electrons in the crystal

Last Answer : In a single crystal of an intrinsic semiconductor, the number of free carriers at the Fermi level at room temperature is: Zero 

In an n-type semiconductor, as the donor concentration ND increases, the Fermi level EF:

Description : In an n-type semiconductor, as the donor concentration ND increases, the Fermi level EF: (1) Remains unaltered (2) Moves towards the conduction band (3) Move towards the center of forbidden energy gap (4) May or may not move depending on temperature 

Last Answer : In an n-type semiconductor, as the donor concentration ND increases, the Fermi level EF: Moves towards the conduction band

Impurity atoms to be added to pure silicon in order to make a p-type semiconductor belongs to

Description : Impurity atoms to be added to pure silicon in order to make a p-type semiconductor belongs to (a) Phosphorous (b) Boron (c) Antimony (d) Aluminium 

Last Answer : Boron  , a  group  three  element.

The advantage of a semiconductor strain gauge cover the wire round strain gauge is that

Description : The advantage of a semiconductor strain gauge cover the wire round strain gauge is that

Last Answer : The advantage of a semiconductor strain gauge cover the wire round strain gauge is that it is more sensitive

The semiconductor used for LEDs emitting in the visible range is

Description : The semiconductor used for LEDs emitting in the visible range is  (a) GaAs (b) GaAlAs (c) GalnAs (d) GaAsP

Last Answer : The semiconductor used for LEDs emitting in the visible range is GaAsP

The polar bonds existing in III-V compound semiconductor, may be considered as equivalent to

Description : The polar bonds existing in III-V compound semiconductor, may be considered as equivalent to  (a) 1 ionic bond and 3 covalent bonds (b) 1 ionic bond and 4 covalent bonds (c) 2 ionic bonds and 2 covalent bonds (d) 2 ionic bonds and 4 covalent bonds

Last Answer : The polar bonds existing in III-V compound semiconductor, may be considered as equivalent to 1 ionic bond and 3 covalent bonds

The material used for ‘doping’ to prepare N - type semiconductor is

Description : The material used for ‘doping’ to prepare N - type semiconductor is

Last Answer : The material used for ‘doping’ to prepare N - type semiconductor is Arsenic

While comparing doped semiconductor vs. un-doped semiconductor, which of the following

Description : While comparing doped semiconductor vs. un-doped semiconductor, which of the following statements is NOT true ? (A) Doped semiconductor has smaller band-gap compared to un-doped semiconductor (B) ... to un-doped semiconductor (D) Doped as well as un-doped semiconductor have equal bandwidth

Last Answer : While comparing doped semiconductor vs. un-doped semiconductor, which of the following statements is NOT true ? (A) Doped semiconductor has smaller band-gap compared to un-doped semiconductor (B) ... to un-doped semiconductor (D) Doped as well as un-doped semiconductor have equal bandwidth

To increase mobility of electron in a given piece of semiconductor

Description : To increase mobility of electron in a given piece of semiconductor (A) Increase overall size of the semiconductor (B) Increase length (C) Increase width (D) Small increase in temperature above room temperature value

Last Answer : To increase mobility of electron in a given piece of semiconductor Small increase in temperature above room temperature value

In an intrinsic semiconductor, the number of free electrons ………

Last Answer :  In an intrinsic semiconductor, the number of free electrons Equals the number of holes.

In a semiconductor, current conduction is due to ……..

Last Answer : In a semiconductor, current conduction is due to Holes and free electrons.

The impurity level in an extrinsic semiconductor is about ….. of pure semiconductor.

Last Answer : The impurity level in an extrinsic semiconductor is about 1 atom for 108 atoms of pure semiconductor.

A hole in a semiconductor is defined as …………….

Last Answer : A hole in a semiconductor is defined as The incomplete part of an electron pair bond.

Addition of trivalent impurity to a semiconductor creates many ……..

Last Answer : Addition of trivalent impurity to a semiconductor creates many Holes.

An n-type semiconductor is ………

Last Answer : An n-type semiconductor is Electrically neutral.

Addition of pentavalent impurity to a semiconductor creates many ……..

Last Answer : Addition of pentavalent impurity to a semiconductor creates many Free electrons.

When a pentavalent impurity is added to a pure semiconductor, it becomes ………

Last Answer : When a pentavalent impurity is added to a pure semiconductor, it becomes n-type semiconductor.

The strength of a semiconductor crystal comes from ……..

Last Answer : The strength of a semiconductor crystal comes from Electron-pair bonds.

The most commonly used semiconductor is ………..

Last Answer : The most commonly used semiconductor is Silicon.

A semiconductor that decreases in resistance with an increase in temperature is known as a _____________. A. resistor B. thermistor C. diode D. thermopile

Description : A semiconductor that decreases in resistance with an increase in temperature is known as a _____________. A. resistor B. thermistor C. diode D. thermopile

Last Answer : Answer: B

At room temperature in an intrinsic piece of Si there could be

Description : At room temperature in an intrinsic piece of Si there could be (A) No free carriers (B) Some electrons but no holes (C) Some holes but no electrons (D) Equal number of holes and electrons

Last Answer : No  free   carriers.

At room temperature, an intrinsic silicon crystal acts approximately as ……

Last Answer : At room temperature, an intrinsic silicon crystal acts approximately as An insulator.

The temperature coefficient of copper is `0.004^(@)C^(-1)`. Find the resistance of a 5 m long copper wire of diameter 0.2 mm at `100^(@)C`, if the res

Description : The temperature coefficient of copper is `0.004^(@)C^(-1)`. Find the resistance of a 5 m long copper wire of diameter 0.2 mm at `100^(@)C`, if the res

Last Answer : The temperature coefficient of copper is `0.004^(@)C^(-1)`. Find the resistance of a 5 m long copper wire of ... `0^(@)C` is `1.7xx10^(-8) Omega` m.

The temperature coefficient of a resistance wire is `0.00 12.5^(@)C^(-1)`. At 300 K, its resistance is `1 Omega`. At what temperature the resistance o

Description : The temperature coefficient of a resistance wire is `0.00 12.5^(@)C^(-1)`. At 300 K, its resistance is `1 Omega`. At what temperature the resistance o

Last Answer : The temperature coefficient of a resistance wire is `0.00 12.5^(@)C^(-1)`. At 300 K, its ... the resistance of the wire will be `2 Omega` ?

The temperature coefficient of resistance of the material of a wire is `0.00125^(@)C^(-1)`. Its resistance at `27^(@)C` is `1 Omega`. At what temperat

Description : The temperature coefficient of resistance of the material of a wire is `0.00125^(@)C^(-1)`. Its resistance at `27^(@)C` is `1 Omega`. At what temperat

Last Answer : The temperature coefficient of resistance of the material of a wire is `0.00125^(@)C^(-1)`. Its resistance at ... K B. 1100 K C. 1400 K D. 1127 K

The temperature coefficient of resistance of an alloy used for making resistor is

Description : The temperature coefficient of resistance of an alloy used for making resistor is

Last Answer : The temperature coefficient of resistance of an alloy used for making resistor is A. small and ... C. large and positive D. large and negative

The resistance of a bulb filmanet is `100Omega` at a temperature of `100^@C`. If its temperature coefficient of resistance be 0.005 per `.^@C`, its re

Description : The resistance of a bulb filmanet is `100Omega` at a temperature of `100^@C`. If its temperature coefficient of resistance be 0.005 per `.^@C`, its re

Last Answer : The resistance of a bulb filmanet is `100Omega` at a temperature of `100^@C`. If its temperature coefficient of ... . `200^(@)C` D. `400^(@)C`

The existing resistance of a conductor is dependent upon its length, cross-sectional area, _____________. A. temperature and insulation B. material and insulation C. resistive coefficient and material D. material and temperature

Description : The existing resistance of a conductor is dependent upon its length, cross-sectional area, _____________. A. temperature and insulation B. material and insulation C. resistive coefficient and material D. material and temperature

Last Answer : Answer: D

When temperature rises, resistance of negative temperature coefficient thermistor A. increases B. decreases C. zero D. infinity

Description : When temperature rises, resistance of negative temperature coefficient thermistor A. increases B. decreases C. zero D. infinity

Last Answer : decreases

Which temperature coefficient indicates a material whose resistance increases as temperature increases?

Description : Which temperature coefficient indicates a material whose resistance increases as temperature increases?

Last Answer : Positive.

Define the temperature coefficient of resistance.

Description : Define the temperature coefficient of resistance.

Last Answer : The amount of increase in the resistance of a 1-ohm sample of the conductor per degree of temperature rise above 0º C

The fractional change in resistance per kelvin is known as, a. temperature coefficient of resistance b. coefficient of Voltage of charge c. thermal expansion d. all of above

Description : The fractional change in resistance per kelvin is known as, a. temperature coefficient of resistance b. coefficient of Voltage of charge c. thermal expansion d. all of above

Last Answer : a. temperature coefficient of resistance

Semi-conductors have ________ temperature coefficient of resistance. (A) Negative (B) Positive (C) Both positive and negative (D) None of the above

Description : Semi-conductors have ________ temperature coefficient of resistance. (A) Negative (B) Positive (C) Both positive and negative (D) None of the above

Last Answer : (A) Negative

Problem on temperature coefficient of resistance 3

Description : Problem on temperature coefficient of resistance 3

Last Answer : Problem on temperature coefficient of resistance 3

Problem on temperature coefficient of resistance 2

Description : Problem on temperature coefficient of resistance 2

Last Answer : Problem on temperature coefficient of resistance 2

Problem on temperature coefficient of resistance 1

Description : Problem on temperature coefficient of resistance 1

Last Answer : Problem on temperature coefficient of resistance 1

Which amongst the following has a negative coefficient of temperature for resistance?

Description : Which amongst the following has a negative coefficient of temperature for resistance?  a) Copper b) Lead c) Carbon d) Aluminium

Last Answer : Which amongst the following has a negative coefficient of temperature for resistance? Carbon 

The resistance temperature coefficient is defined as

Last Answer : The resistance temperature coefficient is defined as the ratio of increase in resistance per degree centigrade to the resistance at 0oC.

A metal resistor has resistance of 10 ohm at 0°C and 11 ohms at 160°C, the temperature coefficient is

Last Answer : A metal resistor has resistance of 10 ohm at 0°C and 11 ohms at 160°C, the temperature coefficient is 0.000625 /°C.

The metal having the lowest temperature coefficient of resistance is

Description :  The metal having the lowest temperature coefficient of resistance is

Last Answer : The metal having the lowest temperature coefficient of resistance is gold.

what is the temperature coefficient of Resistance of conductor ?

Description : what is the temperature coefficient of Resistance of conductor ?

Last Answer : conductors have positive coefficient. means as the temperature increases resistance also increases.

In a transistor, the base is _______. (1) an insulator (2) a conductor of low resistance (3) a conductor of high resistance (4) an extrinsic semiconductor

Description : In a transistor, the base is _______. (1) an insulator (2) a conductor of low resistance (3) a conductor of high resistance (4) an extrinsic semiconductor

Last Answer : (2) a conductor of low resistance Explanation: A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit.