When troubleshooting most electronic...

Question 1 / 205eccefa3bacbc34ba4d47f9f

Question 1 of 205eccefa3bacbc34ba4d47f9f

When troubleshooting most electronic circuits, what voltmeter characteristic can minimize the 'loading effect'?

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Question 1 of 20

5eccefa3bacbc34ba4d47f9f

When troubleshooting most electronic circuits, what voltmeter characteristic can minimize the 'loading effect'?

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🔍 Key Concepts

• Loading effect when measuring voltage in an electronic circuit • Relationship between meter input impedance and the circuit impedance • How sensitivity (ohms per volt) affects how much a meter disturbs the circuit

💭 Think About

• When you connect a voltmeter across a component, what happens if the meter draws a lot of current compared to the circuit? • Should the meter act more like an open circuit or more like a short circuit if you want the original circuit voltage to stay almost unchanged? • How does very high vs very low input impedance change the current that flows through the meter?

✅ Before You Answer

• Compare meter input impedance to the impedance of the part of the circuit you are measuring • Think about which option makes the meter draw the least possible current from the circuit • Check that the described sensitivity units make physical sense (ohms/volt vs volts/ohm) for a typical voltmeter

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Question 1 of 20

When troubleshooting most electronic circuits, what voltmeter characteristic can minimize the 'loading effect'?

input impedance much greater than the impedance across which the voltage is being measured

input impedance much less than the impedance across which the voltage is being measured

sensitivity of less than 1000 ohms/volt

sensitivity of more than 1000 volts/ohm

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Question 1 / 205eccefa3bacbc34ba4d47f9f

Question 1 of 205eccefa3bacbc34ba4d47f9f

When troubleshooting most electronic circuits, what voltmeter characteristic can minimize the 'loading effect'?

Back

Question 1 of 20

5eccefa3bacbc34ba4d47f9f

When troubleshooting most electronic circuits, what voltmeter characteristic can minimize the 'loading effect'?

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