Define the temperature coefficient of resistance.

Define the temperature coefficient of resistance.
by

1 Answer

Answer :

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

Related questions

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 term negative temperature coefficient.

Description : Define the term negative temperature coefficient.

Last Answer : It is the decrease in a semiconductor’s resistance as temperature rises.

What type of temperature coefficient material does not produce increased heat in response to increased current flow?

Description : What type of temperature coefficient material does not produce increased heat in response to increased current flow?

Last Answer : Zero-temperature coefficient.

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

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

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

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.

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

Last Answer : A semiconductor has Negative temperature coefficient of resistance.

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.

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.

What effect does flux leakage in a transformer have on the coefficient of coupling (K) in the transformer?

Description : What effect does flux leakage in a transformer have on the coefficient of coupling (K) in the transformer?

Last Answer : it causes K to be less than unity (I).

What effect does flux leakage in a transformer have on the coefficient of coupling (K) in the transformer?

Description : What effect does flux leakage in a transformer have on the coefficient of coupling (K) in the transformer?

Last Answer : it causes K to be less than unity (I).

What is meant by the coefficient of coupling?

Description : What is meant by the coefficient of coupling?

Last Answer : The ratio of the fines of force produced by one coil to the lines of force that link another coil. It is never greater than one.

Will an optical fiber's attenuation coefficient vary with changes in wavelength?

Description : Will an optical fiber's attenuation coefficient vary with changes in wavelength?

Last Answer : Yes.

Define specific resistance.

Description : Define specific resistance.

Last Answer : The resistance of a unit volume of a substance.

Define insulation resistance.

Description : Define insulation resistance.

Last Answer : The resistance to current leakage through the insulation.

What term describes a material whose resistance remains relatively constant with changes in temperature?

Description : What term describes a material whose resistance remains relatively constant with changes in temperature?

Last Answer : Zero temperature coefficient.

What is the heat coefficient of resistance ?

Description : What is the heat coefficient of resistance ?

Last Answer : Answer : The coefficient of heat is the amount of radh that increases with the increase in temperature per ohm of radh.

A plantinum wire has resistance of `10 Omega` at `0^(@)C` and `20 Omega` at `273^(@)C`. Find the value of coefficient of resistance.

Description : A plantinum wire has resistance of `10 Omega` at `0^(@)C` and `20 Omega` at `273^(@)C`. Find the value of coefficient of resistance.

Last Answer : A plantinum wire has resistance of `10 Omega` at `0^(@)C` and `20 Omega` at `273^(@)C`. Find the value of coefficient of resistance.

Determine the viscous damping coefficient if damper offers resistance 0.05N at constant velocity 0.04m/sec A 0.8N-sec/m B 1.5N-sec/m C 2.5N-sec/m D 1.25N-sec/m

Description : Determine the viscous damping coefficient if damper offers resistance 0.05N at constant velocity 0.04m/sec A 0.8N-sec/m B 1.5N-sec/m C 2.5N-sec/m D 1.25N-sec/m

Last Answer : D 1.25N-sec/m

Coefficient of resistance is the ratio of (A) Actual velocity of jet at vena-contracta to the theoretical velocity (B) Area of jet at vena-contracta to the area of orifice (C) Loss of head in the orifice to the head of water available at the exit of the orifice (D) Actual discharge through an orifice to the theoretical discharge

Description : Coefficient of resistance is the ratio of (A) Actual velocity of jet at vena-contracta to the theoretical velocity (B) Area of jet at vena-contracta to the area of orifice (C) Loss ... available at the exit of the orifice (D) Actual discharge through an orifice to the theoretical discharge

Last Answer : Answer: Option C

Coefficient of discharge Cd is equal to (where Cc = Coefficient of contraction, Cv = Coefficient of velocity, and Cr = Coefficient of resistance) (A) Cc × Cv (B) Cc × Cr (C) Cv × Cr (D) Cc /Cr

Description : Coefficient of discharge Cd is equal to (where Cc = Coefficient of contraction, Cv = Coefficient of velocity, and Cr = Coefficient of resistance) (A) Cc × Cv (B) Cc × Cr (C) Cv × Cr (D) Cc /Cr

Last Answer : Answer: Option A

In a braking test, a vehicle travelling at 36 km ph was stopped at a braking distance of 8.0 m. The average value of the vehicle's skid resistance (friction coefficient) is (A) 0.64 (B) 6.25 (C) 0.16 (D) None of these

Description : In a braking test, a vehicle travelling at 36 km ph was stopped at a braking distance of 8.0 m. The average value of the vehicle's skid resistance (friction coefficient) is (A) 0.64 (B) 6.25 (C) 0.16 (D) None of these

Last Answer : Answer: Option C

Manganese steels (A) Are non-magnetic (B) Possess high electrical resistance (C) Possess low coefficient of expansion (D) All the above

Description : Manganese steels (A) Are non-magnetic (B) Possess high electrical resistance (C) Possess low coefficient of expansion (D) All the above

Last Answer : Answer: Option D

Define the performance coefficient of a refrigerator. ?

Description : Define the performance coefficient of a refrigerator. ?

Last Answer : : The ratio of heat removed from low temperature heat to work performed by an outside company is called the performance coefficient of the refrigerator.

What is friction? Define coefficient of static friction and coefficient of kinetic friction.

Description : What is friction? Define coefficient of static friction and coefficient of kinetic friction.

Last Answer : What is friction? Define coefficient of static friction and coefficient of kinetic friction. Give the necessary formula for each.

Define coefficient of restitution and obtain its value for an elastic collision and a perfectly inelastic collision.

Description : Define coefficient of restitution and obtain its value for an elastic collision and a perfectly inelastic collision.

Last Answer : Define coefficient of restitution and obtain its value for an elastic collision and a perfectly inelastic collision.

Define permeability and coefficient of permeability

Description : Define permeability and coefficient of permeability 

Last Answer : Definition i) Permeability (k) It is defined as the properly of soli which permits the seepage of fluid through interconnecting voids under gravity OR Permeability (k) It is defined as the speed at which ... is represented as K = v/i  Where v = discharge velocity in m/s i = hydraulic gradient

Define coefficient of uniformity and coefficient of curvature. Calculate Cu and Cc if D10 = 0.90 mm, D30 = 1.18 mm, D60 = 2.30 mm.

Description : Define coefficient of uniformity and coefficient of curvature. Calculate Cu and Cc if D10 = 0.90 mm, D30 = 1.18 mm, D60 = 2.30 mm.

Last Answer : Coefficient of uniformity: It is the ratio of D60 to D10 values of soil from particle size distribution curve, called as coefficient of uniformity. Coefficient of curvature: It is the ratio of square of D30 to product of D10 and D60 values of coefficient of curvature.

State the Darcy’s law of permeability with expression. Hence define coefficient of permeability.

Description : State the Darcy’s law of permeability with expression. Hence define coefficient of permeability.

Last Answer : Darcy's law of permeability: It states that for laminar flow, the rate of flow or discharge per unit time is directly proportional to hydraulic gradient. Expression: q = KiA  / = Ki  V = Ki ... velocity of flow under a unit hydraulic gradient through a soil. Mathematically: K = V/i

Define coefficient of performance.

Description : Define coefficient of performance.

Last Answer : Coefficient of Performance.: Working performance of any machine is usually expressed by output/input ratio known as efficiency. In refrigeration it is denoted by C.O.P. ( β ) . COP= refrigeration effect/ work input to produced R.E.  β=RE/W

Define film heat transfer coefficient.

Description : Define film heat transfer coefficient.

Last Answer : Film heat transfer coefficient: Film heat transfer coefficient h is defined as the quantity of heat transferred in unit time through unit area at a temperature difference of 10 between the surface and surrounding.

Define coefficient of fluctuation of energy.

Description : Define coefficient of fluctuation of energy. 

Last Answer : Definition of Coefficient of Fluctuation of Energy: It may be defined as the ratio of the maximum fluctuation of energy to the work done per cycle. Mathematically it is expressed as; 

Define :i) Self inductance ii) Coefficient of self induction

Description : Define :i) Self inductance ii) Coefficient of self induction

Last Answer : i) Self-inductance: It is the property by virtue of which a coil opposes change in current flowing through it by inducing an emf in it such that its effect is to circulate current (induced current) that produces a magnetic field ...          N = di/dt        N = Φ/I  It is expressed in henry.  

What is an advantage of using a resistance soldering iron when soldering wire to a connector?

Description : What is an advantage of using a resistance soldering iron when soldering wire to a connector?

Last Answer : The soldering tips are hot only during the brief period of soldering the connection, thus minimizing the chance of burning the wire insulation or connector inserts.

When you are using an ohmmeter to test a transistor for leakage, what is indicated by a low, but not shorted, reverse resistance reading?

Description : When you are using an ohmmeter to test a transistor for leakage, what is indicated by a low, but not shorted, reverse resistance reading?

Last Answer : A leaking transistor

When you are testing the gain of an audio-frequency transistor with an ohmmeter, what is indicated by a 10-to-1 resistance ratio?

Description : When you are testing the gain of an audio-frequency transistor with an ohmmeter, what is indicated by a 10-to-1 resistance ratio?

Last Answer : Normal gain.