This document discusses various tools used to measure electrical quantities like voltage, current, and resistance. It identifies tools like the voltmeter, ammeter, ohmmeter, micrometer, and wire gauge. It provides activities where students must identify these tools, their uses, and units of measurement. Students also practice using a ruler and micrometer to measure real objects.

1. EIM MODULE 3
•MEASURING TOOLS AND
INSTRUMENTS

2. Test Light

3. Micrometer

4. Wire Gauge

5. Ruler/foot rule

6. Ammeter

7. Voltmeter

8. Clamp Ammeter or tong-tester

9. Volt-Ohmmeter (VOM) or Multi-tester

10. ACTIVIITY

11. Identify the following materials or
equipment. Write your answers in
your activity notebook.
1. It is an instrument specially
designed for measuring voltage.

12. 2. It is an instrument used to
measure resistance in ohms.
3. It is used to measure current
flowing in a conductor. It is clamped
or hanged in a conductor.

13. 4. It is an instrument used to
measure the amount of
electrical current intensity in
a circuit.

14. 5. It is an electrical measuring
instrument used to measure the
voltage, the resistance or the
current of a circuit.
6. It is a measuring tool used to
measure the length of an object
in centimeter and inches.

16. It is a measuring tool used to measure
length, width and thickness of short
flat object and in sketching straight
lines.
8. It is used to measure the diameter
of wires/conductors in circular mils. It
can measure small and big sizes of
wires and cables.

17. It is a pocket size tool used to
test the line wire or circuit if
there is current in it.
10. It is used to measure the
diameter of magnetic wire.

18. ACTIVITY 2

19. I. Directions: Match the electrical
measuring tools and instruments in
column A with their descriptions in
column B. Write the letter of the
correct answer in your notebook.

21. II. Identify the following. Write
your answers in your activity
notebook.
1. What is the unit of measurement
for resistance?
2. What is the unit of measurement
for voltage?

22. 3. What is the unit of
measurement for current?
4. What is the other name for
VOM?
5. What amount is measured aby
an ammeter?

23. •ACTIVITY 3

24. Directions: Multiple Choice Test.
Choose the letter of the object being
described and write the letter of your
answer in your activity notebook.
____1. An instrument used to measure
the amount of electrical current intensity
in a circuit.
A. Voltmeter C. Micrometer
B. Ammeter D. Ohmmeter

25. ___2. A pocket-sized tool used to test
the presence of current in a line wire
or circuit.
A. Test light
B. Wire gauge
C. Ruler
D. Pull-push rule

26. ____3. A measuring tool used to
measure the length of an object in
centimeters and inches
A. Test light
B. Wire gauge
C. Ruler
D. Pull-push rule

27. ____4. It is used to measure the
diameter of wires/conductors in
circular mills. It can measure small
and big sizes of wires and cables.
A. Voltmeter
B. Ammeter
C. Micrometer
D. Ohmmeter

28. ___5. It is used to measure the voltage,
resistance, and current of a circuit. It is
connected in parallel or series with the
circuit depending on what to measure.
A. Voltmeter
B. Ammeter
C. Micrometer
D. Ohmmeter

29. • WHAT I CAN DO

30. Directions: Using a ruler, measure the
length, width, and thickness/height of the
given objects below. Write your answers
inside the corresponding box. Place your
drawing and labels in your activity
notebook. You will be graded according to
the rubrics given.