A resistor in which the resistance changes exponentially with change in temperature is called as

 A resistor in which the resistance changes exponentially with change in temperature is called as A) Potentiometer B) Phototransistor C) Varactor D) Thermistor 
by

1 Answer

Answer :

 A resistor in which the resistance changes exponentially with change in temperature is called as Thermistor 

by

Related questions

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

The transducer with negative temperature co-efficient of resistance is

Description : The transducer with negative temperature co-efficient of resistance is (A) Thermistor (B) Resistance Thermometer (C) Strain Gauge (D) Thermocouple

Last Answer : The transducer with negative temperature co-efficient of resistance is Thermistor

Temperature co-efficient of resistance is expressed in terms of?

Description : Temperature co-efficient of resistance is expressed in terms of?

Last Answer : Degree celsius

With rise in temperature the resistance of semi-conductors?

Description : With rise in temperature the resistance of semi-conductors?

Last Answer : With rise in temperature the resistance of semi-conductors decreases.

With rise in temperature the resistance of pure metals?

Description : With rise in temperature the resistance of pure metals?

Last Answer : With rise in temperature the resistance of pure metals increases.

The hot resistance of the bulb's filament is higher than its cold resistance because...

Description : The hot resistance of the bulb's filament is higher than its cold resistance because the temperature co-efficient of the filament is?

Last Answer : This  is  because  resistance  of  a  conductor  increases  with  increase  in  temperature .

Which of the following is NOT a non-linear resistor?

Description : Which of the following is NOT a non-linear resistor? A) Varistor B) Precision resistor C) NTC thermistor D) PTC thermistor 

Last Answer : Which of the following is NOT a non-linear resistor? A) Varistor B) Precision resistor C) NTC thermistor D) PTC thermistor 

A 1000Ohm, 1 Watt resistor can safely pass a current of

Description : A 1000Ohm, 1 Watt resistor can safely pass a current of

Last Answer : A 1000 Ohm, 1 Watt resistor can safely pass a current of 30 mA

State the applications and specification of (i) Resistor (ii) Capacitor (iii)Inductor

Description : State the applications and specification of (i) Resistor (ii) Capacitor (iii)Inductor

Last Answer : Application of resistor: 1.Resistors are used in high frequency instrument. 2.Resistor is used in power control circuit. 3.It is used in DC power supplies. 4.Resistors are used ... DC Current  3.Electromagnetic Interference (EMI)  4.Magnetic Saturation Flux Density  5.Curie Temperature 

Define resistor and draw symbol of variable resistor.

Description : Define resistor and draw symbol of variable resistor.

Last Answer : Resistor: A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit. Symbol of variable resistor:   

Source transformation Replace the circuit with voltage source in series with a single resistor

Description : Source transformation Replace the circuit with voltage source in series with a single resistor

Last Answer : Source transformation Replace the circuit with voltage source in series with a single resistor

Find current through resistor using nodal analysis

Description : Find current through resistor using nodal analysis

Last Answer : Find current through resistor using nodal analysis

In a 5 bit weighted resistor D/A converters, the resistor value corresponding to LSB is 40 kΩ, and the resistor

Description : In a 5 bit weighted resistor D/A converters, the resistor value corresponding to LSB is 40 kΩ, and the resistor value corresponding to MSB will be (A) 0.4 kΩ (B) 3 kΩ (C) 2.8 kΩ (D) 2.5 kΩ

Last Answer : In a 5 bit weighted resistor D/A converters, the resistor value corresponding to LSB is 40 kΩ, and the resistor value corresponding to MSB will be 2.5 kΩ 

An open resistor, when checked with an ohm-meter reads?

Description : An open resistor, when checked with an ohm-meter reads?

Last Answer : An open resistor, when checked with an ohm-meter reads infinite.

Standard resistor is made from?

Last Answer : Standard resistor is made from maganin.

Can a supernode contain a resistor?

Description : Can a supernode contain a resistor?

Last Answer : contain

State the procedure for testing of earth pit resistance with necessary diagrams.

Description : State the procedure for testing of earth pit resistance with necessary diagrams.

Last Answer : Following procedure (Method) for testing of earth pit resistance with necessary diagrams. 1) Earth Tester : i) Three point method ii) Four point method 2) By Potential drop method 3 ... of that earthing pit. In this test the accuracy is less but electrical rods are not required. 

what is equivalent resistance when four 4 Ohm resistors are connected in i) series ii) parallel

Description : what is equivalent resistance when four 4 Ohm resistors are connected in i) series ii) parallel

Last Answer : equivalent resistance

Define resistance with its unit.

Description : Define resistance with its unit.

Last Answer : Resistance is a measure of the degree to which a substance impedes the flow of electric current induced by a voltage.  Or Resistance is the opposition to current flow in an electrical circuit. Unit is ohm.(Ω)

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

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.

Parallel Reactance and Resistance Example 1

Description : Parallel Reactance and Resistance Example 1

Last Answer : Parallel Reactance and Resistance Example 1

AC Circuits with Resistance but No Reactance

Description : AC Circuits with Resistance but No Reactance

Last Answer : AC Circuits with Resistance but No Reactance AC Circuits with Resistance but No Reactance Series resistances let two resistances R 1 and R 2 are connected in series as shows in figure and there ... voltage. Voltage V A is common to both the branch hence voltage V A is common reference.

Problems on resistance and resistivity

Description : Problems on resistance and resistivity

Last Answer : Problem on resistance and resistivity 1 : https://youtu.be/OqavD7OlZUs Problem on resistance and resistivity 2 : https://youtu.be/0eo8VO8cpwk Problem on resistance and resistivity 3 : https:// ... https://youtu.be/3neLRCTz0RQ Problem on resistance and resistivity 13 : https://youtu.be/vBCkvPOiztY

Problem on resistance and resistivity 13

Description : Problem on resistance and resistivity 13

Last Answer : Problem on resistance and resistivity 13

Problem on resistance and resistivity 12

Description : Problem on resistance and resistivity 12

Last Answer : Problem on resistance and resistivity 12

Problem on resistance and resistivity 11

Description : Problem on resistance and resistivity 11

Last Answer : Problem on resistance and resistivity 11

Problem on resistance and resistivity 10

Description : Problem on resistance and resistivity 10

Last Answer : Problem on resistance and resistivity 10

Problem on resistance and resistivity 9

Description : Problem on resistance and resistivity 9

Last Answer : Problem on resistance and resistivity 9

Problem on resistance and resistivity 8

Description : Problem on resistance and resistivity 8

Last Answer : Problem on resistance and resistivity 8

Problem on resistance and resistivity 7

Description : Problem on resistance and resistivity 7

Last Answer : Problem on resistance and resistivity 7

Problem on resistance and resistivity 6

Description : Problem on resistance and resistivity 6

Last Answer : Problem on resistance and resistivity 6

Problem on resistance and resistivity 5

Description : Problem on resistance and resistivity 5

Last Answer : Problem on resistance and resistivity 5

Problem on resistance and resistivity 4

Description : Problem on resistance and resistivity 4

Last Answer : Problem on resistance and resistivity 4

Problem on resistance and resistivity 3

Description : Problem on resistance and resistivity 3

Last Answer : Problem on resistance and resistivity 3

Problem on resistance and resistivity 2

Description : Problem on resistance and resistivity 2

Last Answer : Problem on resistance and resistivity 2

Problem on resistance and resistivity 1

Description : Problem on resistance and resistivity 1

Last Answer : Problem on resistance and resistivity 1

Name two methods for measurement of low, medium and high resistance. Give one advantage and one limitation of V- I method.

Description : Name two methods for measurement of low, medium and high resistance. Give one advantage and one limitation of V- I method.

Last Answer : Methods for measurement of low resistance:  1. Ammeter voltmeter method  2. Kelvin's bridge method  3. Ohm meter method  4. Potentiometer method  5. Digital/analog multi-meter ... must be infinity for perfectly accurate measurement which is not possible.  2. Connection errors.

Name the method used to measure following resistances:- (i) Low resistance (ii) Medium resistance (iii) Insulation resistance (iv) Earth resistance.

Description : Name the method used to measure following resistances:- (i) Low resistance (ii) Medium resistance (iii) Insulation resistance (iv) Earth resistance.

Last Answer : Following are the methods used to measure resistances:-  (i) Low resistance: 1.Voltmeter-Ammeter Method 2. Kelvin's Double bridge Method  (ii) Medium resistance: 1.Voltmeter-Ammeter Method 2. ... of Charge Method  (iv) Earth resistance : 1. Fall of Potential Method 2. Earth tester

Write any two factors on which earth resistance depends.

Description : Write any two factors on which earth resistance depends.

Last Answer : Factors on which earth resistance depends: (1) The shape and material used for the electrode (2) Depth of the electrode in the ground. (3) The specific resistance of the soil around the electrode (4) Moisture content in the soil. (5) Nature of soil 

State the use of shunt and series resistance used in extension of meter.

Description : State the use of shunt and series resistance used in extension of meter.

Last Answer : Use of shunt and series resistance: i) Use of shunt: To extend the range of Ammeter. ii) Use of series resistance: To extend the range of Voltmeter.

State the range for low and medium resistance.

Description : State the range for low and medium resistance.

Last Answer : Low resistances: less than 1 ohm.  Medium resistances: 1 ohm to 0.1 Mega ohm. 

Explain V- I method of measurement of medium resistance.

Description : Explain V- I method of measurement of medium resistance. 

Last Answer : In this method, use suitable source, ammeter and voltmeter and connect them as shown in the above diagram. Take reading of voltmeter and ammeter, then value of resistance = R = V/I Ω To minimise the error take 4 to 5 observation for the same resistance and take their average.

Give classification of resistance based on their ranges.

Description : Give classification of resistance based on their ranges.

Last Answer : Classification of Resistances Based on Their Ranges: 1) Low resistance: less than 1 ohm. 2) Medium resistance: 1 ohm to 0.1 Mega ohms. 3) High resistance: greater than 0.1 Mega ohms.

Define pinch off voltage and drain resistance of FET.

Description : Define pinch off voltage and drain resistance of FET.

Last Answer : 1 . Pinch-off Voltage: It is the value of the drain to source voltage VDS at which the drain current ID reaches its constant saturation value. Any further increase in VDS does not have any ... drain to source voltage to the change in drain current. It is also called AC/dynamic drain resistance.

Define the following terms as referred to battery. a) E.M.F b) Internal resistance c) Ah efficiency d) WAh efficiency

Description : Define the following terms as referred to battery. a) E.M.F b) Internal resistance c) Ah efficiency d) WAh efficiency

Last Answer : a) E.M.F : The electromotive force of a battery is defined as the energy spent or the work done in taking a unit positive charge around the complete circuit of the battery i.e., in ... input required to restore the initial state of charge, under specified conditions, is called Watt-hr efficiency.

We connected a 35V dc supply to a resistance of 600 Ohm in series with an unknown resistance

Description : We connected a 35V dc supply to a resistance of 600 Ohm in series with an unknown resistance R.A. voltmeter having a resistance of 1.2 kOhm is connected across 600 Ohm resistance and read 5v. The value of resistance R will be

Last Answer : We connected a 35V dc supply to a resistance of 600 Ohm in series with an unknown resistance R.A. voltmeter having a resistance of 1.2 kOhm is connected across 600 Ohm resistance and read 5v. The value of resistance R will be 2.4 kOhm

Which of the following is the name given to resistance of thin films that are uniform in thickness?

Description : Which of the following is the name given to resistance of thin films that are uniform in thickness? A) Area resistance B) Sheet resistance C) Filmy resistance D) None of these

Last Answer : Which of the following is the name given to resistance of thin films that are uniform in thickness? A) Area resistance B) Sheet resistance C) Filmy resistance D) None of these

What is the resistance of a coil which draws 10 A and dissipates 1520 W?

Description : What is the resistance of a coil which draws 10 A and dissipates 1520 W? A) 152 Ω B) 15.2 Ω C) 1.52 Ω D) None of these

Last Answer : What is the resistance of a coil which draws 10 A and dissipates 1520 W? A) 152 Ω B) 15.2 Ω C) 1.52 Ω D) None of these