**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

**Description :** When hot liquid is poured into a thick glass tumbler, it cracks because glass – (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion

**Last Answer :** (1) is a bad conductor of heat so only inner surface expands Explanation: When hot liquid is poured into a thick glass tumbler, it cracks because glass is a bad conductor of heat so only inner surface expands.

**Description :** When hot liquid is poured into a thick glass tumbler, it cracks because glass : (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion

**Last Answer :** is a bad conductor of heat so only inner surface expands

**Description :** Problem on temperature coefficient of resistance 3

**Last Answer :** Problem on temperature coefficient of resistance 3

**Description :** Problem on temperature coefficient of resistance 2

**Last Answer :** Problem on temperature coefficient of resistance 2

**Description :** Problem on temperature coefficient of resistance 1

**Last Answer :** Problem on temperature coefficient of resistance 1

**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

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

**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.

**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.

**Last Answer :** Whenever a wave is incident on a perfect conductor then the reflection coefficient is 0.

**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.

**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` ?

**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

**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

**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`

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

**Last Answer :** decreases

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

**Last Answer :** Positive.

**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

**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

**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

**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

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

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

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

**Description :** What will happen to the resistance if the electric conductor temperature and cross section remain unchanged ?

**Last Answer :** If the conductive temperature and the cross section remain unchanged, increasing the length will increase the resistance.

**Description :** Why does the resistance of the conductor increase when the temperature increases ?

**Last Answer :** Because the vibrations of the atoms inside the conductor increase.

**Description :** A platinum resistance thermometer makes use of the variation of a conductor with temperature. If the resistance of this thermometer is `5 Omega " at "

**Last Answer :** A platinum resistance thermometer makes use of the variation of a conductor with temperature. If the resistance ... for the platinum `=0.0036^(@)C`.

**Description :** The resistance of a conductor is inversely proportional to its - (1) temperature (2) resistivity (3) area of cross section (4) length

**Last Answer :** (3) area of cross section Explanation: The resistance of a current carrying conductor is inversely proportional to the area of cross section of the conductor. This is because the resistance occurs due to the collision of electrons/charged particles.

**Description :** Indicate the three types oftransmissionline energylosses. a. I2R, R , and temperature b. Radiation, I2R, and dielectric heating c. Dielectric separation, insulation breakdown, and radiation d. Conductor heating, dielectric heating, and radiation resistance.

**Last Answer :** b. Radiation, I2R, and dielectric heating

**Description :** How does the resistance of a conductor compare to that of an insulator?

**Last Answer :** The resistance of a conductor can be significantly lower than the resistance of an insulator, depending on each material's atomic properties.

**Description :** Write the four factors affecting the resistance of a conductor.

**Last Answer :** Factors affecting the resistance of a conductor: - 1.Physical state of a conductor 2.Length of a conductor 3.Area of cross section of a conductor 4.Resistivity of a conductor

**Description :** The effective resistance of a conductor will be the same as ohmic resistance when : - a) current is in true sine wave form b) voltage is low c) power factor is unity d) current is uniformly distributed in the conductor cross-section

**Last Answer :** The effective resistance of a conductor will be the same as ohmic resistance when : - current is uniformly distributed in the conductor cross-section

**Description :** With the increase in the cross sectional area of the conductor, the value of resistance: (1) Increase (2) Remain same (3) Decrease (4) None of these

**Last Answer :** With the increase in the cross sectional area of the conductor, the value of resistance: Decrease.

**Description :** resistance of conductor depends on?

**Last Answer :** Use of material Temperature of surrounding Length of conductor Area of cross section of conductor

**Description :** Compare RTD and thermistor on the basis of temperature coefficient , linearity, temperature range and cost.

**Last Answer :** Parameters RTD Thermistors Temperature coefficient It has positive temperature Coefficient (PTC) of Resistance. It has both positive and negative temperature Coefficient (PTC and NTC) of Resistance. ... -270oC to 2800oC -150oC to 300oC Cost High cost Low cost

**Description :** Which of the following has nearly zero temperature coefficient? A) Constantan B) Manganin C) Both A and B D) None of these

**Last Answer :** Which of the following has nearly zero temperature coefficient? A) Constantan B) Manganin C) Both A and B D) None of these

**Description :** Which of the following has negative temperature coefficient? A. Brass B. Mercury C. Electrolytes D. Silver.

**Last Answer :** Electrolytes has negative temperature coefficient.

**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.

**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.

**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

**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

**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

**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

**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

**Description :** What are the advantages of high resistance of conductor ?

**Last Answer :** : The resistance and melting point of nichrome is much higher than that of copper. Due to the high resistance, a lot of heat is generated when electricity flows through the nichrome wire. ... high resistance and melting point of tungsten, it can easily convert electrical energy into light energy.

**Description :** How does the resistance of the conductor depend on the length and cross section of the conductor ?

**Last Answer :** Conductor resistance is proportional to the length of the conductor and disproportionate to the cross section .

**Description :** What is the unit of resistance of electric conductor ?

**Last Answer :** The unit ohm of resistance of an electric conductor.

**Description :** What is the resistance of the conductor ?

**Last Answer :** : Conduction resistance depends on the area and length of the cross section of the conductive material.

**Description :** What is the unit of electrical resistance of a conductor?

**Last Answer :** Answer: Ohm

**Description :** A potential difference of 10 V is applied across a conductor of resistance `1 k Omega`. Find the number of electrons flowing through the conductor in

**Last Answer :** A potential difference of 10 V is applied across a conductor of resistance `1 k Omega`. ... of electrons flowing through the conductor in 5 minutes.