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What meter must NEVER be connected to a circuit when the circuit power is turned on?
Wiki User
∙ 10y ago
An Ohmmeter.
Wiki User
∙ 10y ago
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Why would never measure resistance in a circuit carrying a current?
If the circuit is carrying current then that means that the load (resistance) is in the circuit. if an ohm meter is connected in the live circuit then there would be some voltage drop at the ohm meter but as the meter has very less resistance, this would damage the instrument.
What type of meter is connected in parallel with a resistor in a circuit and why?
A voltmter, to measure potential diffrence
How do you wire in a voltmeter?
A voltmeter needs to be connected in parallel with the part of the circuit you are checking. It records a change in voltage, and has a high internal resistance, so it cannot be connected in series unless you want to screw up the circuit. Set the meter to AC or DC volts and place the wires of the terminal across the resistor, switch, or any other potentially resistive part of the circuit.
What type of meter would be connected on both sides of a resistor in a circuit?
ammeter in series at any side as required since it is bilateral and voltmeter is connected in parallel to measure voltage drop across it
When an ammeter is connected to measure current circuit current will decrease sightly because R total decreases after the meter is inserted?
Current will be decreased because of the resistance of the ammeter added to the circuit's resistance. In other words total resistance increases.
Why would never measure resistance in a circuit carrying a current?
If the circuit is carrying current then that means that the load (resistance) is in the circuit. if an ohm meter is connected in the live circuit then there would be some voltage drop at the ohm meter but as the meter has very less resistance, this would damage the instrument.
The electrical meter that should be connected in series with a live circuit is?
ammeter
How is a amp meter connected to measure dc amps?
An Ammeter is connected in series with the circuit that you want to make the measurement on.
What would drop the amps on 220 plug?
The amperage on a circuit is governed by the connected load. If a load changes its current draw it can be detected by an amp meter connected to the circuit.
What type of meter is connected in parallel with a resistor in a circuit and why?
A voltmter, to measure potential diffrence
How do you check for amps?
You need to use an ammeter - usually the current setting on a multi-meter. The meter should be connected to the circuit in series.
When the voltmeter is connected across the open in the circuit the meter will indicate a voltage equal to the?
The source voltage.
Will the voltmeter work when ammeter is connected wrongly in a circuit?
The volt meter should work. The meter is connected across the supply where as the amp meter is connected in series with any load that it is metering. On larger installations to measure the amperage, a current transformer is connected around the conductor to be monitored. If a CT is used then the polarity has to be observed when connecting to an amp meter.
What are the changes take placein the volt meter connected to the series and pararrel circuits?
The essential difference between a series circuit and a parallel circuit is the way in which the components are physically connected. In a series circuit there is just a single path that electricity can take, whereas in a parallel circuit there are two or more different paths.
What is it that shows whether or not a current flows?
An amp meter connected in series with the load will show whether or not a current is flowing in a circuit.
When you connect a multimeter across an open component what is the reading?
That will depend on the setting of the meter switch and the circuit connected to the component (if there is one).
How do you measure amps on a 208V single phase circuit with a clamp on amp meter?
Clamp the meter around the energized conductor that is connected to the load to be measured and read the amperage off of the dial face of the meter.
