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Why does every ammeter in a circuit have the same reading?

If you're connecting it properly, then I would have to guess that the multimeter is defective.


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 is voltage reading on circuit with 6 volt battery 1 ammeter 1 50 ohm resistor?

i=v/r can be used to it


How do you connect a shunt resistor to a DC circuit to measure current?

To measure the current in a DC circuit an ammeter may be used. This ammeter may consist of a sensitive meter with a shunt in parallel with it to divert part of the current. In case even more current is expected than the full scale reading of the meter an additional shunt may be connected in parallel with that arrangement.


Why is an ammeter is always connected in series with the circuit?

When considering electricity, Current (measured in Amps) is often considered the flow of energy. The force behind the flow is the Volts. While the volts can be measured between any two points in the circuit (open, or closed), measuring the current, or flow of energy typically requires interrupting the flow. Somewhat like water. One can measure pressure of the water on a branch, but one must have a way to monitor the actual flow to determine how much water has passed. There are "exceptions" though. If you have an AC circuit, then an inductive ammeter can measure the amps around a single leg if the circuit without being installed inline with the circuit. Even with a DC circuit, it may be desirable to design a bypass or shunt circuit so that the majority of the current bypasses the ammeter, and only a small amount of the current actually flows through the ammeter.

Related Questions

What happens to the ammeter reading if resistor is removed?

If the resistor is removed from the circuit, the total resistance in the circuit decreases. This causes the total current in the circuit to increase, which would result in an increase in the ammeter reading.


What happens to an ammeter when there is a break in a circuit?

An ammeter reads the current that is flowing through a branch of a circuit. If there is a break within that same branch of the circuit, current will not be able to flow through that branch of the circuit as it forms an incomplete loop, so the ammeter will read 0 A of current. If there is a break in a circuit in a branch that is not connected to the ammeter however, the ammeter will give a higher reading of the current. This is assuming that the break in the other branch does not short out the branch with the ammeter attached, and that the circuit can still form a complete loop without that branch.


What does the reading on a ammeter say when the switch is open?

An open switch in a circuit will stop all current flow so the ammeter should read zero amps.


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 instrument measures current in an electric circuit?

An ammeter is the instrument used to measure current in an electric circuit. It is connected in series in the circuit and provides a reading of the amount of electric current flowing through it.


The rules of connecting voltmeter and ammeters in the circuit?

Connect ammeter in series and voltmeter in parallel to the circuit


How is the strength of electric current measured with?

The strength of an electric current is measured in amperes (A) using an ammeter. An ammeter is a device that is connected in series in a circuit to measure the flow of current. The higher the current flowing through a circuit, the higher the amperage reading on the ammeter.


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.


Why does every ammeter in a circuit have the same reading?

If you're connecting it properly, then I would have to guess that the multimeter is defective.


What will the decrease of the light intensity on an LDR do to the ammeter reading?

The decrease of light intensity on an LDR will cause the resistance of the LDR to increase, which will result in a decrease in current flow through the circuit. As a result, the ammeter reading will decrease.


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.


How would you connect an ammeter if you want to measure the current coming through some device in a circuit?

HOW TO CONNECT AN AMMETER Always connect an ammeter in SERIES in a circuit. Always ensure that the ammeter has a higher reading range than the expected current load, including start-up spikes. An ammeter expected to read a steady current of 13A should have a max range of 20A.