QuestionJuly 25, 2025

The current in an automotive tailight circuit needs to be checked. Technician A connects a conventional voltmeter in series with the circuit being tested. Technician B connects a conventional ammeterin parallel with the circuit being tested. Who is right? A A only. B B only. C Both Aand B. D Neither Anor B.

The current in an automotive tailight circuit needs to be checked. Technician A connects a conventional voltmeter in series with the circuit being tested. Technician B connects a conventional ammeterin parallel with the circuit being tested. Who is right? A A only. B B only. C Both Aand B. D Neither Anor B.
The current in an automotive tailight circuit needs to be checked. Technician A connects a conventional voltmeter in series with the
circuit being tested. Technician B connects a conventional ammeterin parallel with the circuit being tested. Who is right?
A A only.
B B only.
C Both Aand B.
D Neither Anor B.

Solution
4.3(322 votes)

Answer

D Neither A nor B. Explanation 1. Identify correct instrument usage A voltmeter should be connected in parallel to measure voltage, not in series. An ammeter should be connected in series to measure current, not in parallel. 2. Evaluate Technician A's method Technician A incorrectly connects a voltmeter in series, which is not the proper method for measuring current. 3. Evaluate Technician B's method Technician B incorrectly connects an ammeter in parallel, which can cause a short circuit and is not the proper method for measuring current.

Explanation

1. Identify correct instrument usage<br /> A voltmeter should be connected in parallel to measure voltage, not in series. An ammeter should be connected in series to measure current, not in parallel.<br /><br />2. Evaluate Technician A's method<br /> Technician A incorrectly connects a voltmeter in series, which is not the proper method for measuring current.<br /><br />3. Evaluate Technician B's method<br /> Technician B incorrectly connects an ammeter in parallel, which can cause a short circuit and is not the proper method for measuring current.
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