An ammeter is connected in series with the circuit being measured because you want to measure the current flowing through the circuit, whereas a voltmeter is connected in parallel with the circuit being measured because you want to measure the voltage across the circuit.
Kirchoff's current law states that the signed sum of the currents entering a node is zero. A consequence of that law is that the current at every point is a series circuit is the same. The ammeter measures that current and, so long as its impedance is not too high, it won't disturb the circuit being measured.
Kirchoff's voltage law, on the other hand, states that the signed sum of the voltage drops in a series circuit adds up to zero. A consequence of that law is that the voltage across parallel nodes must be equal. The voltmeter measures that voltage and, so long as it impedance is not too low, it won't disturb the circuit being measured.
Formalities aside...
An ammeter is a low impedance device. If you were to connect it in parallel with a circuit, it would draw all of the available current from that circuit. It and the circuit or its power supply would be damaged, because the ammeter represents a short circuit.
A voltmeter is a high impedance device. If you were to connect it in series with a circuit, it would prevent any of the available current from reaching that circuit. While it and the circuit would probably not be damaged, the circuit would not function.
Since practical meters are not perfect, the ammeter is not zero ohms impedance, nor is the voltmeter infinity ohms impedance. If you intend to measure both current and voltage in a circuit, it is normal protocol to measure the voltage across the circuit downstream of the ammeter, so that you would not be also measuring the additional voltage drop across the ammeter.
ammeters are assumed as has 0 (zero) resistance. So connecting the ammeters in parallel means short-circuiting the component.
according to ohm's law v=ir. all the currents should connected in series.i=i1+i2+...........
The voltmeter is connected in parallel.
Depends. What did you want to measure? If it's voltage drop across the incandescent element, then you had better hook up your infinite resistance voltmeter in parallel with the lamp.
Ammeters are connected in series with the load under test. This requires the load be disconnected from the source, and the ammeter placed in circuit. Voltmeters are connected in parallel with the load under test. This does not require any circuit changes. Sorry, but WikiAnswers does not support illustrations.
A voltmeter can be connected in parallel with a resistor to show the voltage across the resistor.
If you are asking how a voltmeter should be connected in a circuit, then the answer is that it should be connected in parallel with the device across which you want to determine the voltage. This applies whether the circuit is d.c. or a.c.
Usually a voltmeter is connected across the load whether or not it is AC (Alternating current) or DC (Direct Current). A voltmeter is never connected in series with the load as this may cause serious injury or damage. The meter will absorb the full potential .
Ammeter is coneccted in series with circuit but Voltmeter is connected in parallel.
in parallel
A voltmeter should be connected in a parallel connection
A voltmeter is a device to measure the voltage in a electric circuit, and must have be connected in parallel to it.
Connect ammeter in series and voltmeter in parallel to the circuit
Depends. What did you want to measure? If it's voltage drop across the incandescent element, then you had better hook up your infinite resistance voltmeter in parallel with the lamp.
The voltmeter is connected in parallel between the two points whose potential difference is required.
Resistance is connected in parallel with voltmeter or say, voltmeter is connected in parallel with resistance.
Voltmeter should be connected always in parallel to a circuit ANSWER : IT should be in parallel except when used to measure current. Then it should be placed in series across a shunt.
A voltmeter is used to measure potential difference across two points in an electrical circuit . The voltmeter is connected in parallel across the circuit element (resistance ) so that its inclusion in the circuit has negligible effect on total resistance and current flowing in yhe circuit A voltmeter has high resistance,if connected in series it will increase of circuit and reduce the current in the circuit
Ammeters are connected in series with the load under test. This requires the load be disconnected from the source, and the ammeter placed in circuit. Voltmeters are connected in parallel with the load under test. This does not require any circuit changes. Sorry, but WikiAnswers does not support illustrations.
A voltmeter can be connected in parallel with a resistor to show the voltage across the resistor.