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2-22. What will be the probable result of
connecting an ammeter (or
milliammeter) in PARALLEL with a
source of voltage or a circuit component?
1. A burned-out meter that will provide
no useful readings
2. A higher than normal meter reading
3. A lower than normal meter reading
4. A normal meter reading
Figure 2C.—Series-parallel circuit.
IN ANSWERING QUESTIONS 2-23 AND
2-24, REFER TO FIGURE 2C.
2-23. To measure total circuit current, you
should break the circuit to connect an
ammeter at which of the following
points?
1. A only
2. B or C
3. C, D, or E
4. A, B, or F
2-24. To measure the current flow through
resistor R2 only, you should break which
of the following points to connect the
ammeter?
1. A
2. B
3. C
4. F
2-25. Meter sensitivity is determined by the
amount of current required by the
ammeter coil to provide full-scale
deflection of the pointer. An ammeter
coil requiring which of the following
current values provides the greatest
sensitivity?
1. 1 milliampere
2. 10 milliamperes
3. 100 microamperes
4. 500 microamperes
2-26. Circuits in which low-sensitivity
ammeters are used are said to be
"loaded." Which of the following
statements describes the cause of circuit
loading?
1. The ammeter circuit draws NO
current from the circuit being tested
2. The ammeter circuit draws
MINIMUM current from the circuit
being tested
3. The ammeter circuit draws
EXCESSIVE current from the circuit
being tested
4. The ammeter circuit INDUCES
current into the circuit being tested
2-27. In which of the following electronic
circuits does the use of a meter with low
sensitivity have the greatest loading
effect?
1. High-power circuits
2. Low-current circuits
3. High-current circuits
4. High-voltage circuits
