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How do you test the power in a circuit?
A volt meter will do the job.
What is short circuit ratio?
Ratio of field current required to produce rated voltage in open circuit to the field current required to produce rated current in short circuit.
Why the power must be off when checking the resistance in the circuit?
an ohmmeter contains its own power source that it uses to test the circuit. if power is still on in the circuit, at the least the meter will give incorrect readings, at the worst the meter may be damaged rendering it useless.
The electrical meter that should be connected in series with a live circuit is?
ammeter
What should be observed when connecting a volteter into a DC circuit?
polarity is of major importance in dicect current circuits. <<>> When using meters please remember that a volt meter does not connect into a circuit, the leads are placed across the component that you are measuring. It is an amp meter that connects into the circuit, becoming part of the circuit, to measure the current flowing through that circuit.
What is code 31 on Toyota Camry?
31manifold and/or airflow meter sensor signal circuit--airflow meter/circuit--manifold pressure sensor/circuit--ecu
What does the am meter do in a circuit?
An ammeter measures the amount of current flowing in a circuit
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 meter must NEVER be connected to a circuit when the circuit power is turned on?
An Ohmmeter.
What a Ohm meter measures in a circuit?
Resistance
What must be disconnected from a circuit under test before connecting the ohm meter to the circuit?
You must always disconnect the power supply from the circuit before connecting an ohmmeter.otherwise the meter may be damaged.
Circuit continuity is measured using?
Circuit continuity can be tested by using an ohm meter.
When measuring current always place any type of meter in series with the circuit--is this true?
No. While it is true that one can measure current at any point in a circuit by breaking the circuit at that point and inserting the meter, not any meter will do it. One must use an ammeter to measure current.
How do you detect the cause of an open circuit?
Ohms Meter
How do you test resistance in a circuit?
With a meter that measures Ohms.
How is current in a circuit checked?
by a volt meter / ameter
How do you test the power in a circuit?
A volt meter will do the job.
