What is an Ammeter ?

What is an Ammeter ?
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1 Answer

Answer :

An ammeter is a device which can be used to directly measure the flow of electricity in an electric single ampere. It is a galvanometer whose resistance is very low. It has to be connected in series with the circuit. As a result, the entire current flows through the meter coil.
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Related questions

What is ammeter shunt ?

Description : What is ammeter shunt ?

Last Answer : A small amount of radial coupling in parallel with the coil to increase the range of ammeter is called ammeter shunt.

What is meant by Voltmeter & Ammeter ?

Description : What is meant by Voltmeter & Ammeter ?

Last Answer : Voltmeter measures the voltage of any load or any line and the voltmeter has to be connected parallel to the load. The ammeter measures the current flowing through a load or the current of an electrical line. The ammeter is connected in series with the load.

What should be the resistance of a standard ammeter ?

Description : What should be the resistance of a standard ammeter ?

Last Answer : The resistance of a standard ammeter should be zero.

What are the physical quantities measured with voltmeter and ammeter ?

Description : What are the physical quantities measured with voltmeter and ammeter ?

Last Answer : : The voltage difference between two points of a circuit is measured with a voltmeter. And the flow rate of an electric circuit is measured with an ammeter.

How to connect voltmeter and ammeter to circuit ?

Description : How to connect voltmeter and ammeter to circuit ?

Last Answer : : A voltmeter is connected in parallel with the two points of voltage circuit to measure the voltage difference. Again, to measure the flow rate of an electric circuit, ammeters are added to the electromagnetic circuit.

What is the function of ammeter ?

Description : What is the function of ammeter ?

Last Answer : Moving coil ammeter is used to measure one-way flow of electricity and moving iron ammeter is used to measure alternating current.

In the circuit shown in Fig. 4.67, the resistance of the ammeter A is negligible and that of thevoltmeter V is very high. When the switch S is open, t

Description : In the circuit shown in Fig. 4.67, the resistance of the ammeter A is negligible and that of thevoltmeter V is very high. When the switch S is open, t

Last Answer : In the circuit shown in Fig. 4.67, the resistance of the ammeter A is negligible and that of ... internal resistance of the cell (iii) value of R.

Find the ammeter reading in the cirucit shown in Fig. 4.65.

Description : Find the ammeter reading in the cirucit shown in Fig. 4.65.

Last Answer : Find the ammeter reading in the cirucit shown in Fig. 4.65.

In the circuit shown in Fig. 4.64, the battery has an emf of 12.0 V and an internal resistance of `5R//11`. If the ammeter reads 2.0 A, what is the va

Description : In the circuit shown in Fig. 4.64, the battery has an emf of 12.0 V and an internal resistance of `5R//11`. If the ammeter reads 2.0 A, what is the va

Last Answer : In the circuit shown in Fig. 4.64, the battery has an emf of 12.0 V and an internal resistance of ` ... ammeter reads 2.0 A, what is the value of R ?

The reading of the ammeter as per figure shown is

Description : The reading of the ammeter as per figure shown is

Last Answer : The reading of the ammeter as per figure shown is A. `(1)/(2)A` B. `(3)/(4)A` C. `(1)/(8)A` D. `2A`

A voltmeter of range 2 V and resistance `300 Omega` cannot be converted into ammeter of range

Description : A voltmeter of range 2 V and resistance `300 Omega` cannot be converted into ammeter of range

Last Answer : A voltmeter of range 2 V and resistance `300 Omega` cannot be converted into ammeter of range A. `1 A` B. `1 mA` C. `100 mA` D. `10 mA`

A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampere range. The value (in ohm) of necessary shunt will be

Description : A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampere range. The value (in ohm) of necessary shunt will be

Last Answer : A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampere range. The value (in ohm) ... 001` B. `0.01` C. 1 D. `0.05`

In a ammeter `0.2%` of main current passes through the galvanometer. If resistance of galvanometer is `G`, the resistance of ammeter will be

Description : In a ammeter `0.2%` of main current passes through the galvanometer. If resistance of galvanometer is `G`, the resistance of ammeter will be

Last Answer : In a ammeter `0.2%` of main current passes through the galvanometer. If resistance of galvanometer is `G`, the ... 1)/(500)G` D. `(500)/(499)G`

A DC ammeter has resistance `0.1 Omega` and its current ranges `0-100 A`. If the range is to be extended to `0-500`, then the following shunt resistan

Description : A DC ammeter has resistance `0.1 Omega` and its current ranges `0-100 A`. If the range is to be extended to `0-500`, then the following shunt resistan

Last Answer : A DC ammeter has resistance `0.1 Omega` and its current ranges `0-100 A`. If the range is to be extended ... Omega` C. `0.025 Omega` D. `0.25 Omega`

A `1 Omega` resistance in series with an ammeter is balanced by 25 cm of potentiometer by 50 cm. The ammeter shows a reding of `1.5 A`. Then, the erro

Description : A `1 Omega` resistance in series with an ammeter is balanced by 25 cm of potentiometer by 50 cm. The ammeter shows a reding of `1.5 A`. Then, the erro

Last Answer : A `1 Omega` resistance in series with an ammeter is balanced by 25 cm of potentiometer by 50 cm. The ammeter shows a ... B. 3A C. `1.3 A` D. `0.3A`

Assertion : Resistance of an ammeter is less than the resistance of a milliammeter. Reason : Value of shunt required in case of ammeter is more than a

Description : Assertion : Resistance of an ammeter is less than the resistance of a milliammeter. Reason : Value of shunt required in case of ammeter is more than a

Last Answer : Assertion : Resistance of an ammeter is less than the resistance of a milliammeter. Reason : Value of ... . If Assertion is false but Reason is true.

In the circuit shown, keys `K_1` and `K_2` both are closed the ammeter reads `I_0`. But when `K_1`is open and `K_2` is closed, the ammeter reads `I_0/

Description : In the circuit shown, keys `K_1` and `K_2` both are closed the ammeter reads `I_0`. But when `K_1`is open and `K_2` is closed, the ammeter reads `I_0/

Last Answer : In the circuit shown, keys `K_1` and `K_2` both are closed the ammeter reads `I_0`. But when `K_1`is open and ... A. 100,50 B. 50100 C. 0,100 D. 0,50

Fing the reading of the ideal ammeter connected in the given circuit. Assume that the cells have negligible internal resistance.

Description : Fing the reading of the ideal ammeter connected in the given circuit. Assume that the cells have negligible internal resistance.

Last Answer : Fing the reading of the ideal ammeter connected in the given circuit. Assume that the cells have negligible internal ... 25A` C. `1.95A` D. `1.0A`

In the circuit shown in figure ammeter and voltmeter are ideal. If `E=4 V,R=9Omega` and `r=1Omega` then readings of ammeter and voltmeter are

Description : In the circuit shown in figure ammeter and voltmeter are ideal. If `E=4 V,R=9Omega` and `r=1Omega` then readings of ammeter and voltmeter are

Last Answer : In the circuit shown in figure ammeter and voltmeter are ideal. If `E=4 V,R=9Omega` and `r=1Omega` then readings of ... V C. 3 A, 4 V D. 4 A, 4 V

A moving coil galvanometer is converted into an ammeter reads upto `0.03 A` by connecting a shunt of resistance `4r` across it and ammeter reads up `0

Description : A moving coil galvanometer is converted into an ammeter reads upto `0.03 A` by connecting a shunt of resistance `4r` across it and ammeter reads up `0

Last Answer : A moving coil galvanometer is converted into an ammeter reads upto `0.03 A` by connecting a shunt of resistance `4r` ... `0.02A` C. `0.03A` D. `0.04A`

A potentiometer circuit is setup as shown. The potential gradient across the potentiometer wire is `k "volt"//cm` and the ammeter present in the circu

Description : A potentiometer circuit is setup as shown. The potential gradient across the potentiometer wire is `k "volt"//cm` and the ammeter present in the circu

Last Answer : A potentiometer circuit is setup as shown. The potential gradient across the potentiometer wire is `k "volt"//cm` and ... (2)` D. `kl_(1)"and"kl_(2)`

In the circuit shown here, the readings of the ammeter and voltmeter are

Description : In the circuit shown here, the readings of the ammeter and voltmeter are

Last Answer : In the circuit shown here, the readings of the ammeter and voltmeter are A. 6 A, 60 V B. `0.6` A, 6 V C. 6 A, 6 V D. 6/11 A, 6/11 V

Two resistors `400Omega` and `800Omega` are connected in series with a `6V` battery. It is desired to measure the current in the circuit. An ammeter o

Description : Two resistors `400Omega` and `800Omega` are connected in series with a `6V` battery. It is desired to measure the current in the circuit. An ammeter o

Last Answer : Two resistors `400Omega` and `800Omega` are connected in series with a `6V` battery. It is desired to measure the current ... .95` V C. `3.8` V D. 4 V

The reading of the ammeter in the following figure will be

Description : The reading of the ammeter in the following figure will be

Last Answer : The reading of the ammeter in the following figure will be A. `0.8` A B. `0.6` A C. `0.4` A D. `0.2` A

An ammeter and a voltmeter of resistance `R` connected in seires to an electric cell of negligible internal resistance. Their readings are `A` and `V`

Description : An ammeter and a voltmeter of resistance `R` connected in seires to an electric cell of negligible internal resistance. Their readings are `A` and `V`

Last Answer : An ammeter and a voltmeter of resistance `R` connected in seires to an electric cell of negligible ... increase D. A will increase and V will decrease

By mistake, a voltmeter is connected in series and an ammeter is connected in parallel, with a resistance in an electrical circuit. What will happen t

Description : By mistake, a voltmeter is connected in series and an ammeter is connected in parallel, with a resistance in an electrical circuit. What will happen t

Last Answer : By mistake, a voltmeter is connected in series and an ammeter is connected in parallel, with a ... be damaged D. Only the voltmeter will be damaged

If there are 8 division between the 0 mark and 0.4 mark of an ammeter it's least count is what?

Description : If there are 8 division between the 0 mark and 0.4 mark of an ammeter it's least count is what?

Last Answer : Need answer

Why in an ammeter low resistance is connected in parallel with the coil?

Description : Why in an ammeter low resistance is connected in parallel with the coil?

Last Answer : Feel Free to Answer

What is SI unit of ammeter?

Description : What is SI unit of ammeter?

Last Answer : Electric current

What is measured by an ammeter?

Description : What is measured by an ammeter?

Last Answer : Electric current

The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Description : The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Last Answer : ANSWER: A

Instruments of Measure The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Description : Instruments of Measure The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Last Answer : ANSWER: A

The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Description : The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Last Answer : ANSWER: A

The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Description : The device used ' for the measurement of current, voltage and resistance is: A. AVO meter B. Galvanometer C. Ammeter D. Ohm meter

Last Answer : ANSWER: A

The apparatus used to test acidity of aqueous solution is - (1) pH meter (2) Ammeter (3) Hygrometer (4) Acidmeter

Description : The apparatus used to test acidity of aqueous solution is - (1) pH meter (2) Ammeter (3) Hygrometer (4) Acidmeter

Last Answer : (1) pH meter Explanation: A pH meter is an electronic device used for measuring the pH (acidity or alkalinity) of a liquid. A typical pH meter consists of a special measuring probe (a glass electrode) connected to an electronic meter that measures and displays the pH reading.

Which of the following is not correct? (1) Ammeter measures the strength of electric current. (2) Lactometer measures the relative density of milk. (3) Rain gauge measures rain fall (4) Hygrometer measures sound under water.

Description : Which of the following is not correct? (1) Ammeter measures the strength of electric current. (2) Lactometer measures the relative density of milk. (3) Rain gauge measures rain fall (4) Hygrometer measures sound under water.

Last Answer : (4) Hygrometer measures sound under water. Explanation: A hygrometer is a weather instrument used to measure the amount of humidity in the atmosphere

Which instrument is used to measure altitudes in aircraft’s? (1) Audiometer (2) Ammeter (3) Altimeter (4) Anemometer

Description : Which instrument is used to measure altitudes in aircraft’s? (1) Audiometer (2) Ammeter (3) Altimeter (4) Anemometer

Last Answer : (3) Altimeter Explanation: Ammeter - Measures strength of electric current. Audiometer - Measures intensity of sound. Anemometer - Measures force and velocity of wind and directions.

Conversion of heat into electrical er is achieved by using – (1) Ammeter (2) Hydrometer (3) Voltmeter (4) Thermocouple

Description : Conversion of heat into electrical er is achieved by using – (1) Ammeter (2) Hydrometer (3) Voltmeter (4) Thermocouple

Last Answer : (4) Thermocouple Explanation: Thermoelectric generators convert thermal energy into electricity by using heat from the body - or any object with a temperature gradient - as their energy source. ... energy into electricity. Bismuth telluride and its alloys are commonly used in thermocouples.

Instrument used to measure the force and velocity of the wind is – (1) Ammeter (2) Anemometer (3) Altimeter (4) Audiometer

Description : Instrument used to measure the force and velocity of the wind is – (1) Ammeter (2) Anemometer (3) Altimeter (4) Audiometer

Last Answer : (2) Anemometer Explanation: An anemometer is a device for measuring wind speed, and is a common weather station instrument. The term is derived from the Greek word anemos, meaning wind, and ... between the pressure and the speed, an anemometer designed for one will give information about both.

In the schematic diagram of the DC compound generator shown in the illustration, the positive ammeter reading is 500 amps and the negative ammeter reading is 475 amps. What is the current flow through the neutral bus? EL-0037 A. 0 amp B. 12.5 amp C. 25 amp D. 975 amp

Description : In the schematic diagram of the DC compound generator shown in the illustration, the positive ammeter reading is 500 amps and the negative ammeter reading is 475 amps. What is the current flow through the neutral bus? EL-0037 A. 0 amp B. 12.5 amp C. 25 amp D. 975 amp

Last Answer : Answer: C

A three-phase alternator operates at 450 volts with a power factor of 0.8. If the ammeter indicates 250 amperes, what should be the KW meter reading? A. 90.00 KW B. 127.27 KW C. 155.70 KW D. 194.85 KW

Description : A three-phase alternator operates at 450 volts with a power factor of 0.8. If the ammeter indicates 250 amperes, what should be the KW meter reading? A. 90.00 KW B. 127.27 KW C. 155.70 KW D. 194.85 KW

Last Answer : Answer: C

When testing for blown fuses in a three-phase supply circuit to a motor, you should first ___________________. A. apply the megger across the tops of the line fuses B. apply an ammeter diagonally across the top of the first line fuse and the bottom of the third line fuse C. apply the voltage tester across the bottoms of the line fuses D. ensure the circuit is de-energized, and then use a continuity tester

Description : When testing for blown fuses in a three-phase supply circuit to a motor, you should first ___________________. A. apply the megger across the tops of the line fuses B. apply an ammeter diagonally across ... of the line fuses D. ensure the circuit is de-energized, and then use a continuity tester

Last Answer : Answer: D

A three-phase alternator is operating at 450 volts with the switchboard ammeter indicating 300 amps. The kw meter currently indicates 163.6 KW, with a power factor of 0.7. If the power factor increases to 0.8, the KW meter would then read ____________. A. 181.4 KW B. 186.8 KW C. 194.2 KW D. 201.4 KW

Description : A three-phase alternator is operating at 450 volts with the switchboard ammeter indicating 300 amps. The kw meter currently indicates 163.6 KW, with a power factor of 0.7. If the power factor increases to 0.8, the KW meter would then read ____________. A. 181.4 KW B. 186.8 KW C. 194.2 KW D. 201.4 KW

Last Answer : Answer: B

A switchboard ammeter indicates a reading slightly above 'zero' when the leads are disconnected, this is caused by _____________. A. mechanical misalignment of the meter pointer B. a poor ground for the meter case C. static electricity in the air D. capacitors inside the meter storing charges

Description : A switchboard ammeter indicates a reading slightly above 'zero' when the leads are disconnected, this is caused by _____________. A. mechanical misalignment of the meter pointer B. a poor ground for the meter case C. static electricity in the air D. capacitors inside the meter storing charges

Last Answer : Answer: A

The proper method of connecting an ammeter in a circuit is demonstrated by which of the diagrams shown in the illustration? EL-0041 A. A B. B C. C D. All of the above

Description : The proper method of connecting an ammeter in a circuit is demonstrated by which of the diagrams shown in the illustration? EL-0041 A. A B. B C. C D. All of the above

Last Answer : Answer: D

Conductor resistance may be INDIRECTLY measured by using a/an _____________. A. voltmeter only B. ammeter only C. voltmeter and an ammeter D. ohmmeter only

Description : Conductor resistance may be INDIRECTLY measured by using a/an _____________. A. voltmeter only B. ammeter only C. voltmeter and an ammeter D. ohmmeter only

Last Answer : Answer: C

A multimeter may be damaged by taking a _____________. A. voltage reading while in the ammeter mode B. current reading while in the voltmeter mode C. resistance reading while in the ammeter mode D. resistance reading while in the voltmeter mode

Description : A multimeter may be damaged by taking a _____________. A. voltage reading while in the ammeter mode B. current reading while in the voltmeter mode C. resistance reading while in the ammeter mode D. resistance reading while in the voltmeter mode

Last Answer : Answer: A

You are calibrating a multimeter using internal batteries to supply power for resistance measurements. However, you are unable to adjust the pointer to 'zero' using the adjustment knob. Therefore, you should _____________. A. replace the batteries in the instrument B. measure resistance by dividing the voltmeter indication by the ammeter indication C. set the pointer using a bridge D. change scales to the R X 100 scale and adjust using the 'zero ohms' adjusting knob

Description : You are calibrating a multimeter using internal batteries to supply power for resistance measurements. However, you are unable to adjust the pointer to 'zero' using the adjustment knob. Therefore, you should ... change scales to the R X 100 scale and adjust using the 'zero ohms' adjusting knob

Last Answer : Answer: A

An internal resistance is placed in series with the meter movement of which of the following instruments? A. AC ammeter B. DC ammeter C. DC voltmeter D. Frequency meter

Description : An internal resistance is placed in series with the meter movement of which of the following instruments? A. AC ammeter B. DC ammeter C. DC voltmeter D. Frequency meter

Last Answer : Answer: C

The hook-on AC volt-ammeter consists essentially of a split-core and a rectifiertype instrument connected to the secondary winding of a _____________. A. potential transformer B. control transformer C. current transformer D. reactance transformer

Description : The hook-on AC volt-ammeter consists essentially of a split-core and a rectifiertype instrument connected to the secondary winding of a _____________. A. potential transformer B. control transformer C. current transformer D. reactance transformer

Last Answer : Answer: C