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COD1101_Q1

Total questions: 24

Worksheet time: 20mins

Name
Class
Date
1.

which metric prefix is represented by 109?

a)

Kilo

b)

Mega

c)

Giga

d)

Tera

2.

Which metric prefix is represented by 10-3?

a)

mili

b)

micro

c)

nano

d)

pico

3.

How would you express the following term using engineering notation? 7.956 x 10-4 A

a)

795.6 uA

b)

7.956 uA

c)

7956 mA

d)

0.007956 mA

4.

What is the tolerance for a Red, Brown, Brown, Silver resistor?

a)

1%

b)

20%

c)

5%

d)

10%

5.

What is the color code for a Orange, Black, Red resistor?

a)

3K Ohms

b)

200 Ohms

c)

2K Ohms

d)

300 Ohms

6.

What is the maximum value in the tolerance range of a resistor with color code Red-Violet-Orange-Gold?

a)

2.7 K Ω

b)

32.4 K Ω

c)

28.35 K Ω

d)

27 kΩ

7.

What type of switch is this circuit symbol?

a)

SPST

b)

SPDT

c)

DPST

d)

DPDT

e)

PTM

8.

What type of switch is this circuit symbol?

a)

SPST

b)

SPDT

c)

DPST

d)

DPDT

e)

PTM

9.

The positive terminal on a battery is called the

a)

anode

b)

collector

c)

cathode

d)

electrolyte

10.
Hooking up batteries in parallel increases what?
a)
Current
b)
Voltage
11.

Total voltage is?

a)

1.5 V

b)

3 V

c)

4.5 V

d)

6 V

12.

What is the current through the 4Ω resistor?

a)

Not enough information.

b)

3.5 A

c)

9 A

d)

14 A

13.

What formula should be used to calculate the voltage of this circuit?

a)

Vt = V1 = V2 = V3

b)

It = I1 + I2 + I3

c)

It = I1 = I2 = I3

d)

Vt = V1 + V2 + V3

14.
If you increase the resistance of a circuit, what happens?
a)
Current decreases
b)
Current increases
c)
Electrons disappear
d)
Bulbs get brighter
15.
The total current through this circuit is
a)
0.02 amps
b)
0.09 amps
c)
50 amps
d)
9 amps
16.
A 10Ω, 15Ω, and 20Ω resistor are connected in series to a 90 V power source. If the current is 2 A, what is the voltage drop at the 10 Ω resistor?
a)
5 V
b)
10 V
c)
15 V
d)
20 V
17.
Find the power in this circuit
a)
55 Ohms
b)
110 V
c)
220 W
d)
55 W
18.

An electric circuit contains a battery, three lamps, and an open switch, as represented in the diagram below. When the switch is open, there is an electric current in....

a)

lamp I, only

b)

lamps II and III, only

c)

lamps I, II, and III

d)

none of the lamps

19.
Find the current in this circuit.
a)

13 Ohms

b)

0.14 A

c)

0.625 Ohms

d)

14.4 mA

20.

Using the circuit shown solve for Total resistance (RT)

a)

10 Ohms

b)

6 ohms

c)

3 ohms

d)

2 ohms

21.

Using the circuit shown solve for Current flowing through R3 (IR3)

a)

0.6 A

b)

1 A

c)

500 mA

d)

2 A

22.

Using the circuit shown solve for total Resistance (RT)

a)

15 ohms

b)

20 ohms

c)

27 ohms

d)

9 ohms

23.

Using the circuit shown solve for The voltage drop at R1

a)

5 V

b)

10 V

c)

15 V

d)

20 V

24.
Assuming each resistor has the same resistance, which resistor will have the greatest current?
a)
R1
b)
R5
c)
R6
d)
R7

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