Description : Why will an ammeter be damaged if connected in parallel with the circuit to be measured?
Last Answer : Since the ammeter has a small resistance compared to the load, it will have very high current if it is connected in parallel. This high current will damage the meter.
Description : Which one of the following is the name of a device used to measure voltage without drawing ANY current from the circuit being measured? Is it: w) a wattmeter x) a galvanometer y) an ammeter z) a potentiometer
Last Answer : ANSWER: Z -- A POTENTIOMETER
Description : Is an ammeter connected in series or in parallel with the circuit under test?
Last Answer : . In series.
Description : How is an ammeter connected to the circuit under test?
Last Answer : In series.
Description : How is a series-type ohmmeter connected to the circuit being measured?
Last Answer : The ohmmeter is connected in series with the resistance to be measured.
Description : How the ammeter’s effect on the circuit being measured is kept to a minimum?
Last Answer : The resistance of the ammeter must be much smaller than the circuit load.
Description : How is a voltmeter connected to the circuit to be measured?
Last Answer : In parallel.
Description : In what manner are voltage-measuring instruments connected to the circuit to be measured?
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.
Description : What is measured by an ammeter?
Last Answer : Electric current
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
Description : The RPM of an AC generator can be measured with a/an _____________. A. ammeter B. voltmeter C. vibrating reed meter D. synchroscope
Description : Pressure is measured with the help of A. Manometer. C) Thermocouple. B. Ammeter. D) Orifice plate.
Last Answer : manometer
Description : Electric current is measured by (1) Voltmeter (2) Anemometer (3) Commutator (4) Ammeter
Last Answer : (4) Ammeter
Description : Electric current is measured using which of the following instrument ? (1) Ammeter (2) Voltmeter (3) Anemometer (4) Wattmeter
Last Answer : Ammeter
Description : What range of an ammeter is selected for the final measurement?
Last Answer : A range that allows a meter reading near the center of the scale.
Description : Why should you use the highest range of an ammeter for the initial measurement?
Last Answer : To prevent damage to the meter movement from excessive current.
Description : What is used to allow an ammeter to measure different ranges?
Last Answer : Shunt resistors (internal or external).
Description : What is ammeter sensitivity?
Last Answer : The amount of current that will cause full-scale deflection.
Description : What electrical property does an ammeter measure?
Last Answer : Current.
Description : An ammeter should always be connected so that current will flow into what terminal and out of what terminal?
Last Answer : Negative, positive
Description : What happens when a frequency meter is adjusted to the frequency of the signal being measured?
Last Answer : Power is absorbed by the frequency meter cavity; and a pronounced dip in power, at the output, will be observed.
Description : In swept-frequency testing the impedance of a transmission line, what electrical characteristic is actually being measured?
Last Answer : Swr on the transmission line.
Description : If the insulation of a conductor was being measured in figure1-51 (A), would the reading indicate a good insulation?
Last Answer : Yes.
Description : What type of meter is shown and what is the value of the quantity being measured for each meter in figure 1-51?
Last Answer : (A) Megger (megohmmeter), infinity; (B) Wattmeter, 9.5 kilowatts (9,500 watts). (C) Watt-hour meter, 2.693 megawatt-hours 2,693 kilowatt-hours) (2,693,000 watt-hours).
Description : What type of meter is shown and what is the value of the quantity being measured for each meter in figure1-49?
Last Answer : a. A dc ammeter, 90 mA dc b. A dc voltmeter, 200 V dc c. An ac voltmeter, 4.6 V ac d. An ohmmeter, 400 ohms
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.
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.
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 ?
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
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`
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
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)`
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
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
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
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
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
Description : A DC ammeter is always connected ______________. A. in series with a circuit B. in parallel with a circuit C. with internal shunts only D. without regard to polarity
Last Answer : Answer: A
Description : An ammeter should be used to measure ___________. A. the voltage between two points in a circuit B. circuit continuity C. current flow in a circuit D. total or partial circuit resistance
Description : Which of the instruments listed should always be connected in series with a circuit? A. Ammeter B. Megohmmeter C. Wattmeter D. Voltmeter
Description : What is the direction of current through the load resistor in the circuit shown in the illustration? EL-0085 A. Always from point 'Z' to the grounded end. B. Always from the grounded end to ... on the instantaneous polarity at point 'W'. D. It cannot be determined without a directional ammeter.
Last Answer : Answer: B
Description : Which of the meters listed should only be used after a circuit has been electrically disconnected? A. Wattmeter B. Frequency meter C. Ammeter D. Ohmmeter
Description : To properly use a hook-on-type volt/ammeter to check current flow, you must FIRST _____________. A. de-energize the circuit to allow connection of the instrument in series B. hook the jaws ... test leads to the appropriate terminals D. short the test leads and calibrate the instrument to zero
Description : A resistance in a circuit of unknown value is to be tested using the voltmeter/ammeter method. Therefore, the meters should be connected with _____________. A. both meters in series with the ... parallel with the resistance D. the ammeter in parallel and the voltmeter in series with the resistance
Description : A infinite resistance is considered as a/an a) Closed path(short circuit) b) Open path c) Not defined d) Ammeter with zero reading
Last Answer : b) Open path
Description : Describe how you would connect an ammeter into an electric circuit correctly.
Last Answer : Ans: The positive connector of the ammeter should be attached to the positive terminal of the battery and the ammeter should be placed before the bulb.
Description : Suppose the ammeter or voltmeter you are using in the Ohm’s law experiment does not have +ve and –ve terminal markings. How will you use such ammeter or voltmeter in the circuit?
Last Answer : Answer. We will use a typical battery to determine this. Connect them with wire and the battery if their readings are positive then we have connected them correctly and if their readings in negative then we have connected in opposite polarity.
Description : Full scale Ammeter reading is 10 mA, Voltage across Ammeter is 100 mV. Then for 100 A measurements the power loss in the circuit is a) 1 W b) 10 W c) 100 W d) 1000 W
Last Answer : Ans: 10 W*
Description : A 0-10 mA PMMC ammeter reads 5mA in a circuit; its bottom control spring snaps out suddenly the meter will now read. a) 5mA b) 10mA c) 2.5mA d) 0
Last Answer : Ans: 0