What is the purpose of a series multiplier...

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Question 1 of 206oO1ylcHlwsqPlasDjnB

What is the purpose of a series multiplier resistor used with a voltmeter?

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6oO1ylcHlwsqPlasDjnB

What is the purpose of a series multiplier resistor used with a voltmeter?

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🔍 Key Concepts

• Ohm's Law (V = I × R) and how voltage divides in a series circuit • How a sensitive basic meter movement (like 0–50 mV) can be adapted to measure higher voltages • Difference between extending the voltage range of a voltmeter vs. extending the current range of an ammeter

💭 Think About

• Imagine you have a very delicate meter movement that can only handle a small voltage. What must you add in series so it can safely measure a much higher voltage without damage? • In a series circuit, does adding resistance cause more or less current to flow through the meter movement for the same applied voltage? How does that affect the maximum measurable voltage? • Which instrument (voltmeter or ammeter) normally uses a shunt resistor in parallel to extend its range, and which uses a resistor in series to extend its range?

✅ Before You Answer

• Confirm that a multiplier resistor is connected in series with the voltmeter movement, not in parallel. • Check whether adding this series resistor makes the instrument able to read higher or lower voltages for the same meter deflection. • Make sure you distinguish between range-extending methods for a voltmeter (series resistor) versus an ammeter (parallel shunt resistor).

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Question 1 of 206oO1ylcHlwsqPlasDjnB

What is the purpose of a series multiplier resistor used with a voltmeter?

Back

Question 1 of 20

6oO1ylcHlwsqPlasDjnB

What is the purpose of a series multiplier resistor used with a voltmeter?

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

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