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Worksheets

Electrical Prefixes

Total questions: 15

Worksheet time: 28mins

Name
Class
Date
1.

Convert the following electrical value in to it's correct prefix.

2,300,000v

a)

2.3kv

b)

2.3mv

c)

2.3Mv

d)

2.3uv

2.

Convert the following electrical value to basic units

50ma = ______________

a)

50,000ua

b)

50a

c)

0.5a

d)

0.05a

3.

Convert the following electrical value in to it's correct prefix.

0.000,25a = ___________

a)

0.25ma

b)

25ua

c)

250ua

d)

250na

4.

Convert the following electrical value to basic units.

780,000 ohms

a)

78K ohms

b)

0.78M ohms

c)

780K ohms

d)

7.8M ohms

5.

Convert the following electrical value to basic units

0.005a = ______________

a)

5ma

b)

50mv

c)

5mv

d)

50ma

6.

The force an an electrical circuit is __________________.

a)

power

b)

current

c)

resistance

d)

voltage

7.

Convert the following electrical value into it's normal unit of measurement.

0.5kv _______________

a)

5Mv

b)

500v

c)

500mv

d)

50kv

8.

If E = I * R what would I=?

a)

P * E

b)

E * R

c)

R/E

d)

E/R

9.

A circuit you are working has 10DCv applied to a resistor with a value if 1K ohm, how much current is flowing though that circuit (E = I * R)

a)

10a

b)

10ma

c)

0.001a

d)

10ka

10.

In the formula E = I * R what does E stand for?

a)

power

b)

voltage

c)

current

d)

resistance

11.

In the formula E = I * R what does I stand for?

a)

power

b)

voltage

c)

current

d)

resistance

12.

What is another name for resistance?

a)

power

b)

voltage

c)

current

d)

a load

13.

Using the circuit shown Solve for the current flow.

a)

200ma

b)

20ma

c)

2a

d)

2000a

14.

Solve for R1.

a)

3 ohms

b)

30 ohms

c)

300 ohms

d)

3k ohms

15.

Using the schematic diagram shown what does a,b,c represent?

a)

a. power source b. conductor c. load

b)

a. load, b. power source, c. conductor

c)

a. conductor b. load c. power source

d)

a. load b. conductor c. power source