In troubleshooting a circuit in a console,...

Study

Question 1 of 205eccefa3bacbc34ba4d47f58

In troubleshooting a circuit in a console, you find that a resistor may be faulty. Which of the precautions listed must be observed when using an analog or digital multimeter set up as an ohmmeter to carry out this test?

Back

Question 1 of 20

5eccefa3bacbc34ba4d47f58

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

• How an ohmmeter works and what it measures • Why power must usually be removed when measuring resistance in a circuit • Whether a component should be in-circuit or isolated when checking its resistance

💭 Think About

• Think about what happens to an ohmmeter reading if current is already flowing in the circuit from another power source. • Ask yourself whether an ohmmeter is normally connected in series or across (in parallel with) the component being tested. • Consider how other components connected to the resistor might affect the resistance reading if the resistor is left fully connected in the circuit.

✅ Before You Answer

• Verify whether an ohmmeter supplies its own small test current, and what that implies about external power. • Check if standard practice is to de-energize the circuit before resistance checks. • Confirm whether at least one end of the component should be lifted/isolated to avoid parallel paths affecting the reading.

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed