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A galvanometer has a coil with a resistance of 24.0 Ω,and a current of 180 μA causes it to deflect full scale.If this galvanometer is to be used to construct an ammeter that can read up to 10.0 A,what shunt resistor is required?


A) 123 µΩ
B) 234 µΩ
C) 342 µΩ
D) 432 µΩ
E) 423 µΩ

F) B) and E)
G) None of the above

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What is the maximum current that can be drawn from a 1.50-V battery with an internal resistance of 0.30 ohm?


A) 2.5 A
B) 5.0 A
C) 0.45 A
D) 0.20 A
E) 4.5 A

F) B) and D)
G) None of the above

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For the circuit shown in the figure,what is the current through resistor R1? For the circuit shown in the figure,what is the current through resistor R<sub>1</sub>?   A) 0.071 A B) 0.13 A C) 0.029 A D) 0.016 A


A) 0.071 A
B) 0.13 A
C) 0.029 A
D) 0.016 A

E) None of the above
F) B) and C)

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For the circuit shown in the figure,what current does the ideal ammeter read? For the circuit shown in the figure,what current does the ideal ammeter read?   A) 0.033 A B) 0.078 A C) 0.23 A D) 0.12 A


A) 0.033 A
B) 0.078 A
C) 0.23 A
D) 0.12 A

E) B) and C)
F) A) and C)

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A multiloop circuit is shown in the figure.It is not necessary to solve the entire circuit.Compared to the polarity shown in the figure,the emf ε1 is closest to A multiloop circuit is shown in the figure.It is not necessary to solve the entire circuit.Compared to the polarity shown in the figure,the emf ε<sub>1 </sub>is closest to   A) -5 V. B) 5 V. C) 45 V. D) 51 V. E) -51 V.


A) -5 V.
B) 5 V.
C) 45 V.
D) 51 V.
E) -51 V.

F) A) and B)
G) A) and C)

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When a 20.0-ohm resistor is connected across the terminals of a 12.0-V battery,the voltage across the terminals of the battery falls by 0.300 V.What is the internal resistance of this battery?


A) 3.60 Ω
B) 1.56 Ω
C) 0.98 Ω
D) 0.30 Ω
E) 0.51 Ω

F) All of the above
G) A) and D)

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A 1500-W heater is connected to a 120-V line.How much heat energy does it produce in 2.0 hours?


A) 1.5 kJ
B) 3.0 kJ
C) 0.18 MJ
D) 11 MJ
E) 18 MJ

F) A) and B)
G) A) and E)

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A galvanometer G has an internal resistance rg.An AMMETER is constructed by incorporating the galvanometer and an additional resistance Rs.Which one of the figures below is the most appropriate circuit diagram for the ammeter? A galvanometer G has an internal resistance r<sub>g</sub>.An AMMETER is constructed by incorporating the galvanometer and an additional resistance R<sub>s</sub>.Which one of the figures below is the most appropriate circuit diagram for the ammeter?   A) 1 B) 2 C) 3 D) 4 E) 5


A) 1
B) 2
C) 3
D) 4
E) 5

F) B) and C)
G) A) and E)

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