0
Will the rusting of nails in a sodium chloride - water solution effect the reading off a voltmeter or ammeter?
An ammeter or a voltmeter gives the reading of the flow of current, which is due to the movements of ions. When a rusted nail is immersed in the solution it will add the no of ions into the solution. This will increase the ion concentration and therefore will change the reading of a voltmeter and ammeter.
What else can I help you with?
Why must you read the temperature without removing the thermometer from the solution?
The thermometer reading will change from reading the solution temperature.
Why we don't use hcl in chloride test?
Hydrochloric acid (HCl) is not suitable for chloride tests because it already contains chloride ions, which can interfere with the detection of chloride ions in the sample being tested. Using HCl would result in a false positive or inaccurate reading of the chloride concentration. Typically, silver nitrate is used for chloride tests as it forms a white precipitate of silver chloride in the presence of chloride ions.
What does a pH reading of 8.1 mean?
A pH reading of 8.1 indicates that a solution is slightly alkaline or basic. This means that there are more hydroxide ions present in the solution compared to hydronium ions. Substances with a pH above 7 are considered alkaline.
What is A solution has a pH reading of 4.7 Classify the solution?
A solution with a pH of 4.7 is considered acidic. Solutions with pH values below 7 are acidic, while pH values above 7 are alkaline (basic).
What is blank reading for titration of iodine value?
Blank reading is the initial reading taken before adding the sample in the titration of iodine value. It represents the baseline value of the titrant solution without the presence of the sample. This reading is used to ensure accuracy in calculating the iodine value of the sample by subtracting it from the final reading after titration.
Which has higher ammeter reading sodium chloride or copperII sulphate reason?
Copper(II) sulfate generally has a higher ammeter reading than sodium chloride when dissolved in water. This is because copper(II) sulfate dissociates into more ions (Cu²⁺ and SO₄²⁻) compared to sodium chloride, which dissociates into only two ions (Na⁺ and Cl⁻). The greater number of ions in solution leads to increased conductivity and, consequently, a higher ammeter reading.
What would happen if a voltmeter were substituted for an ammeter?
Smoke. Since a voltmeter is in parallel with the load it is right across the source voltage. Putting the amp meter across the line with its low resistance it will act like a fuse, hence the smoke. Newer solid state testers are usually smarter that the operators. They have built in circuitry which sense the wrong settings you are using and shut the tester off with a "beep" to let you know that you are doing something wrong.
The rules of connecting voltmeter and ammeters in the circuit?
Connect ammeter in series and voltmeter in parallel to the circuit
What happened to the reading of ammeter and voltmeter if the number of dry cells are added in the circuit?
Well, isn't that just a happy little question! When you add more dry cells to a circuit, the ammeter will show a higher reading because there is more current flowing through the circuit. The voltmeter reading will also increase because the total voltage of the circuit will be higher with the addition of more dry cells. Just remember to always paint with light and electricity in your circuits, my friend!
How voltage gets converted into current in an ammeter?
A: It must be be understood that current needs voltage other wise it is zero. An ammeter for DC is always a voltmeter that reads small IR drop to convert that reading into current present. Like an ohmmeter needs volts to read ohm. Both reading are volts it just convert those reading into whatever scale is switch to.
What is the voltmeter reading this time?
positive terminal
What happen to voltage and current when rheostat is adjusted from maximum to minimum resistance using both ammeter and voltmeter?
When a rheostat is adjusted from maximum to minimum resistance, the overall resistance in the circuit decreases. As a result, the current flowing through the circuit increases, which can be observed on the ammeter as a higher reading. Conversely, the voltage across the rheostat will decrease, as the voltage drop across a lower resistance is less, which can be monitored using the voltmeter.
Battery connected to high Resistance voltmeter the reading is 1.5V when it is shorted on a low resistance ammeter the current is 2.5A what is the emf and the internal resistance of the battery?
The Thevenin equivalent circuit of this battery is 1.5V and 0.6 ohms in series. A more exact answer cannot be given without knowing the actual resistance of the 2 meters (I assumed infinite for the voltmeter and zero for the ammeter, as would be for ideal meters).However I would NEVER attempt this test as you describe it, many types of batteries will explode like bombs when shorted (as they would be when an ammeter was placed across them)! The correct way to do this test safely is with just a voltmeter and an adjustable high wattage resistor.
What will happen to the ammeter reading if the resistance is increased?
The current decreases due to I=V/R. The ammeter reading will decrease as R is increased.
How do you convert voltmeter into ammeter?
An ammeter measures the voltage across a resistor with a known value, andfrom that it calculates the current through the resistor. The resistor has to bea very small value, so that it doesn't change the current in the circuit by beingplaced in line with it.If you really want to do this, then you need a resistor made for the purpose,with a resistance of not more than 1 ohm. You can buy one, or maybe roll upa big ball of insulated wire that has a resistance of 1/2 or 3/4 ohm. (How youwould measure that accurately is another question.) When you have thatfractional-ohm resistor, connect the voltmeter across its ends, and you haveyour ammeter. To use it, open (break) the circuit whose current you want tomeasure, and connect your meter into the hole. Read the voltmeter. Thecurrent passing through your resistor is(the voltmeter reading) divided by (the resistance of your resistor).There are other design details to consider, which we won't go into at this time.If you actually try this, don't use it to measure currents greater than maybe1 Ampere. How will you know the current before you've measured it ? That'sexactly the appropriate question. The answer is: Experience. If you haven'tgot it, then maybe you shouldn't be building your own test equipment yet.
Which type digital voltmeter is the of fatest all digital voltmeter?
You mean fastest? Digital voltmeter gives reading in seconds.
A voltmeter is connected to the terminals of a battery that has emf 12.0V and internal resistance 3.00 ohms The battery is not connected to any other external circuitry What is the vmeter's reading?
The voltmeter would read 12 volts. An ammeter connected to to battery would only read 4 amps (12 volts divided by 3 ohms =4)
