Part A A circuit you're building needs an ammeter that goes from 0 mA to a full-scale reading of 80.0 mA. Unfortunately, the only ammeter in the storeroom goes from OμA to a full-scale reading of only 500μA Fortunately, you've just finished a physics class, and you realize that you can make this ammeter work by putting a resistor in parallel with it, as shown in the figure (Figure 1). You've measured that the resistance of the ammeter is 90.0 2, not the 02 of an ideal ammeter. What value of R must you use so that the meter will go to full scale when the current I is 80.0 mA ? Express your answer in ohms. ΑΣΦ Submit Request Answer ▼ Par B What is the effective resistance of your ammeter? Express your answer in ohms. Ref= ΜΕ ΑΣΦ Submit Request Answer ? Ω ? Ω

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Part A
A circuit you're building needs an ammeter that goes from 0 mA to a
full-scale reading of 80.0 mA. Unfortunately, the only ammeter in the
storeroom goes from OμA to a full-scale reading of only 500μA
Fortunately, you've just finished a physics class, and you realize that
you can make this ammeter work by putting a resistor in parallel with it,
as shown in the figure (Figure 1). You've measured that the resistance
of the ammeter is 90.0 2, not the 02 of an ideal ammeter.
What value of R must you use so that the meter will go to full scale when the current I is 80.0 mA ?
Express your answer in ohms.
ΑΣΦ
Submit
Request Answer
▼ Par B
What is the effective resistance of your ammeter?
Express your answer in ohms.
Ref=
ΜΕ ΑΣΦ
Submit
Request Answer
?
Ω
?
Ω
Transcribed Image Text:Part A A circuit you're building needs an ammeter that goes from 0 mA to a full-scale reading of 80.0 mA. Unfortunately, the only ammeter in the storeroom goes from OμA to a full-scale reading of only 500μA Fortunately, you've just finished a physics class, and you realize that you can make this ammeter work by putting a resistor in parallel with it, as shown in the figure (Figure 1). You've measured that the resistance of the ammeter is 90.0 2, not the 02 of an ideal ammeter. What value of R must you use so that the meter will go to full scale when the current I is 80.0 mA ? Express your answer in ohms. ΑΣΦ Submit Request Answer ▼ Par B What is the effective resistance of your ammeter? Express your answer in ohms. Ref= ΜΕ ΑΣΦ Submit Request Answer ? Ω ? Ω
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