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decrease to half of its original value

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Eliseo Weimann

Lvl 10
3y ago

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What will happen to an ammeter reading if the resistors are connected in parallel?

You would be drawing more current. It would be the same as adding more load to the circuit in a vehicle, say more lights. The lights would just be seen as more load (a resistive load in the case of incandescent lights). Add more lights (resistors) and more current is needed. The ammeter would indicate a higher current draw.


The rules of connecting voltmeter and ammeters in the circuit?

Connect ammeter in series and voltmeter in parallel to the circuit


A 9 V battery is hooked in series with two resistors R1 75 and R2 100?

You'll get a reading on the ammeter showing 15 mA


What happens to the ammeter reading when a lamp is added to a circuit which contains two cells and a lamp in series?

Assuming the new lamp is in series, the ammeter reading falls because the total resistance has increased. By how much depends on how the lamp resistance depends on voltage. If the lamp is added in parallel to the first, then the ammeter reading doubles.


As you add more lamps to a parallel circuit what will the ammeter reading do?

If the amp meter is in series ahead of the first parallel branch of lamps the meter will read an increase in current.


How do you calculate the ammeter reading?

The voltage remains the same across the circuit as it is a parallel connection. So, the current across the upper half of the circuit where the ammeter is connected is calculated as I = V/R = 12.04 (total voltage)/12 (Resistance R1) = 1 A. Hence, the ammeter will read 1 A.


What is an ideal ammeter?

An ideal ammeter is a device that measures electric current and has zero resistance, producing no voltage drop when connected in a circuit. This ensures that the current being measured is not affected by the presence of the ammeter itself, providing an accurate reading of the current flowing through the circuit.


What will happen if the reading of ammeter a2 after passing through 30 ohm resistance if reading of a1 is 3A after passing through 20 ohm resistance if both are parallel to each other?

5 A


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.


What will happen if you connect the ammeter in parallel with the component?

All the current would go through the ammeter. The whole purpose for making a measurement with an ammeter is to determine current draw through a component or circuit. If the ammeter takes all the current away from the device under test, the reading would be meaningless. Also, since the ammeter would present pretty much a dead short to the power supply, blown fuses or toasted components usually result.


What happens when a bulb ammeter battery and switch are put connected together?

the bulb will glow and ammeter will show the reading


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.