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ASSIGNMENT 2
Textbook assignment: Chapter 3, “Basic Meters,” pages 3-1 through 3-34. Chapter 4, “Common Test
Equipment,” pages 4-1 through 4-10.
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2-1. What are the two basic components of a
galvanometer?
1. A movable permanent magnet and a
movable coil
2. A stationary permanent magnet and a
stationary coil
3. A stationary permanent magnet and a
movable coil
4. A stationary coil and a movable coil
2-2. The coil in a galvanometer rotates to
allow measurement of current. Which of
the following actions causes this
reaction?
1. Current flowing in opposite
directions through two coils
2. Tension of the hairspring and the
magnetism produced by the
permanent magnet
3. Magnetism produced by current
flowing in the movable coil and the
tension of the hairspring
4. Magnetism of the permanent magnet
and magnetism produced by current
in the movable coil
2-3. In a galvanometer, the phosphor bronze
ribbon serves which of the following
functions?
1. Provides a conduction path from the
circuit being tested to the coil
2. Restores the coil to its original
position
3. Allows the coil to twist
4. Each of the above
2-4. In galvanometers, which of the following
components is/are used to indicate the
value of the current being measured?
1. Pointer
2. Light and mirror
3. Both 1 and 2 above
4. Digital readout
2-5. The phosphor bronze ribbon in the
galvanometer serves the same purpose as
what component in the D'Arsonval
meter?
1. Hairspring
2. Movable coil
3. Fixed iron core
4. Permanent magnet
2-6. The direction in which the D'Arsonval
meter pointer deflects depends on what
characteristic of the current applied to the
coil?
1. Phase
2. Polarity
3. Frequency
4. Amplitude
2-7. The D'Arsonval meter movement is
damped to prevent which of the
following conditions?
1. Oscillating readings
2. Inconsistent readings
3. Consistently low readings
4. Consistently high readings
