An internal resistance is placed in series...

An internal resistance is placed in series...

Question 1 of 27070

Q

An internal resistance is placed in series with the meter movement of which of the following instruments?

A

DC voltmeter

B

AC frequency meter

C

DC ammeter

D

AC ammeter

Question 1 / 270705eccefa3bacbc34ba4d47f43

Question 1 of 270705eccefa3bacbc34ba4d47f43

An internal resistance is placed in series with the meter movement of which of the following instruments?

Question 1 of 27070

Study area:

Study area:

Q

An internal resistance is placed in series with the meter movement of which of the following instruments?

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🔍 Key Concepts

• Series vs. shunt resistors in meter circuits • How a basic meter movement (like a galvanometer) is converted into a voltmeter vs. an ammeter • Effect of adding internal resistance on current and voltage measurement ranges

💭 Think About

• Which type of instrument needs a large internal resistance so that only a small current flows through the movement? • Which type of instrument instead needs a low-resistance shunt path so that most of the current bypasses the movement? • Think about what happens to the meter reading if you place a big resistor in series versus in parallel with the movement.

✅ Before You Answer

• Identify which instrument must have high internal resistance to avoid disturbing the circuit it measures • Recall that an ammeter is designed to have very low overall resistance • Confirm whether the question is asking about a series resistor (multiplier) or a shunt resistor (bypass) before choosing.