When used for taking resistance...

Question 1 / 205eccefa3bacbc34ba4d47f60

Question 1 of 205eccefa3bacbc34ba4d47f60

When used for taking resistance measurements, a portable analog or digital multimeter is normally powered by what source?

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5eccefa3bacbc34ba4d47f60

When used for taking resistance measurements, a portable analog or digital multimeter is normally powered by what source?

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🔍 Key Concepts

• How an ohmmeter function works inside a multimeter • Whether resistance can be measured if the circuit has no external power • The difference between being powered by a source and measuring a source

💭 Think About

• If you are measuring resistance in a loose component on the bench (not connected to any circuit), where would the multimeter get power from to make that measurement? • Think about why instructions always say to de-energize (turn off power to) a circuit before measuring resistance. What does that tell you about the meter’s power source? • Which of the options would make sense for a small, portable meter you can use anywhere, even away from any equipment or outlets?

✅ Before You Answer

• Make sure the power source you choose is something the meter can carry and use without depending on the circuit being tested. • Eliminate any choices that would require the circuit under test to be energized when measuring resistance, since that is normally not allowed. • Confirm that your choice is consistent with how a handheld multimeter can work on a completely disconnected component (like a spare resistor on your desk).

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Question 1 of 20

When used for taking resistance measurements, a portable analog or digital multimeter is normally powered by what source?

a hand cranked generator

internal storage batteries

the current in the circuit being tested

a step down transformer

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Question 1 / 205eccefa3bacbc34ba4d47f60

Question 1 of 205eccefa3bacbc34ba4d47f60

When used for taking resistance measurements, a portable analog or digital multimeter is normally powered by what source?

Back

Question 1 of 20

5eccefa3bacbc34ba4d47f60

When used for taking resistance measurements, a portable analog or digital multimeter is normally powered by what source?

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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

Quick actions

— No credit card needed