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How is the reading on an ammeter be affected when one of the parallel resistors is removed?
decrease to half of its original value
What else can I help you with?
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.
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 reading on the ammeter if one bulb blows out?
If one bulb in a series circuit blows out, the circuit becomes open, and the current stops flowing. As a result, the reading on the ammeter will drop to zero since there is no current passing through the circuit. In a parallel circuit, if one bulb blows out, the current may decrease slightly due to the change in total resistance, but the ammeter will still show a reading corresponding to the remaining bulbs in operation.
When there are three cells in a circuit how would the ammeter change?
In a circuit with three cells, the ammeter reading will depend on how the cells are connected. If they are connected in series, the total voltage increases, which can lead to a higher current, assuming resistance remains constant. If they are connected in parallel, the voltage remains the same as a single cell, but the total current could increase due to the combined capacity of the cells. Therefore, the ammeter's reading will vary based on the configuration of the cells.
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 reading on the ammeter if one bulb blows out?
If one bulb in a series circuit blows out, the circuit becomes open, and the current stops flowing. As a result, the reading on the ammeter will drop to zero since there is no current passing through the circuit. In a parallel circuit, if one bulb blows out, the current may decrease slightly due to the change in total resistance, but the ammeter will still show a reading corresponding to the remaining bulbs in operation.
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.
When there are three cells in a circuit how would the ammeter change?
In a circuit with three cells, the ammeter reading will depend on how the cells are connected. If they are connected in series, the total voltage increases, which can lead to a higher current, assuming resistance remains constant. If they are connected in parallel, the voltage remains the same as a single cell, but the total current could increase due to the combined capacity of the cells. Therefore, the ammeter's reading will vary based on the configuration of the cells.
