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the function of an ammeter "is to measure the rate of current flow from the alternator to the battery".-Small Gas Engines, Ninth edition. Alfred c. Roth. Use an ohmmeter such as a D.V.O.M. to measure resistance. (Everything has a specific task in a vehicle. If there is no current through the ammeter, then one must trouble shoot the entire ignition system.
What else can I help you with?
Why the resistance of an ammeter is bery low?
0. An ammeter is placed in series with the circuit in question; if its' internal resistance is high, it will change the current flow, thus making the measurement meaningless. For the same reason an ideal voltage meter will have infinite resistance.
What kind of meter is created when is shunt is added to a galvanometer?
A galvanometer with a low resistance shunt in parallel makes an ammeter.
What happens when an ammeter is connected in parallel with a circuit?
SMOKE!!! Yiii-haaaa! An ammeter is always as low a resistance as possible. That way, the current that you measure in a circuit using the meter will be the same as if the meter were not there. So putting an ammeter in parallel with a circuit means that you just short circuited the circuit you were intending to measure. Poof! There goes your ammeter!An ammeter has a very low internal resistance. So, if it is connected in parallel with a load, it will short-out that load. The resulting high current flowing through the ammeter may severely damage the meter (and possible harm the user), although most are fitted with fuses to protect them.
How do you convert a electric meter into a ammeter?
To convert an electric meter (usually a voltmeter) into an ammeter, you need to connect a low-resistance shunt resistor in parallel with the meter. This allows a portion of the current to bypass the meter, enabling it to measure the current flowing through the circuit. The shunt resistor's value is calculated based on the maximum current you want to measure and the internal resistance of the meter. Proper calibration is essential to ensure accurate readings.
Why shouldn't ammeter be connected in parallel?
A: An ammeter actually is a voltmeter measuring the voltage drop across a very small shunt resistance. They can measure AC or DC, make sure the meter is rated for the anticipated current, and always connect in series.
What will happen if ammeter is put across a resistance in a circuit?
Maybe blow the fuse or burn out the wiring. An ammeter has an extremely low resistance. connecting it across the resistance causes the resulting parallel resistance to be slightly lower than the resistance of the ammeter 1/Rt = 1/R + 1/R(ammeter)
1 What is the effect caused by the ammeter resistance when an ammeter is inserted into a circuit to measure the current?
An ammeter has a finite resistance which is inserted in series with the rest of the circuit, increasing the total resistance and decreasing the current. A good ammeter has a very low resistance, so it shouldn't affect the circuit noticeably.
Why meter bridge can't be used to measure low resistance and high resistance?
used to measure low Resistance since it must reach a null.
Is the input resitance of an ideal ammeter is low and the output resistance is high?
An ammeter does not have an 'output resistance'. It's important that its resistance is low so as not to add additional resistance into the circuit to which it is connected, otherwise the 'measured current' would be lower than the actual current.
Why should you be the internal resistance of the very few Amitr?
ammeter connect in series in circuit to measure the current, if the Ammeter have a high resistance it would effect the voltage value because there will be a drop voltage over the internal resistance of the Ammeter, so we desgin the ammeters with very low resistance...
Do you can connect a multiplier resistance is series despite a shunt resistance in parallel in ammeter . and why?
An ammeter is connected in series in a branch of the circuit carrying current, and measures the current in that branch. The resistance of the meter must be very low ... ideally zero ... in order to avoid influencing the circuit when it's installed. If you intentionally insert a resistance in series with the meter, then inserting the meter in a circuit changes the current in that branch. In general, it's not acceptable for the act of measuring to change the quantity being measured, unless you are closely related to Werner Heisenberg..
Why shunt resistance is used ammeter?
A shunt resistance is a low resistance connected parallel to the galvanometer so that a large portion of current passes through the low resistance and a small fraction of current passes through the galvanometer this saves the galvanometer from damage
