Free Printable Electricity III

1.

Calculate the annual energy consumption of a house with these devices if they are switched on for 100 hours a year:

Vacuum cleaner -> 1500W

Hair dryer -> 1000W

Iron -> 1200W

Toaster -> 700W

Electric shaver -> 40W

a)

$E=524\ KWh$

b)

$E=434\ KWh$

c)

$E=4250\ KWh$

d)

$E=444\ KWh$

e)

$E=4024\ Wh$

2.

Calculate the Voltage knowing:

Current -> 0,75 A

Resistance -> 6 K $\Omega$

a)

8V

b)

4,5 V

c)

4500 V

d)

45 V

e)

12,5 V

3.

Calculate the Current knowing:

Voltage -> 9 V

Resistance -> 18 $\Omega$

a)

0,2 V

b)

5 A

c)

2 A

d)

0,5 A

e)

162 A

4.

Calculate the Resistance knowing:

Voltage -> 1,5 V

Current -> 1 mA

a)

6,67 $\Omega$

b)

4,5 V

c)

1,5 $\Omega$

d)

0,0015 $\Omega$

e)

1500 $\Omega$

5.

Calculate the Total Resistance and de Total Current:

a)

$R_{1234}=16\Omega$

$I_t=3A$

b)

$R_{1234}=8\Omega$

$I_t=4A$

c)

$R_{1234}=6,5\Omega$ $I_t=2A$

d)

$R_{1234}=8\Omega$

$I_t=5A$

e)

$R_{1234}=8\Omega$

$I_t=3A$

6.

Calculate the Total Resistance and de Total Current:

a)

$R_{12345}=6\Omega$

$I_t=3A$

b)

$R_{12345}=8\Omega$

$I_t=4A$

c)

$R_{12345}=6\Omega$ $I_t=4A$

d)

$R_{12345}=8\Omega$

$I_t=5A$

e)

$R_{12345}=8\Omega$

$I_t=3A$

7.

Calculate the Total Resistance and de Total Current:

a)

$R_{12345}=8\Omega$

$I_t=3A$

b)

$R_{12345}=8\Omega$

$I_t=4A$

c)

$R_{12345}=6\Omega$ $I_t=4A$

d)

$R_{12345}=8\Omega$

$I_t=5A$

e)

$R_{12345}=8\Omega$ $I_t=2A$

8.

Calculate the Total Resistance and de Total Current:

a)

$R_{123456}=6\Omega$

$I_t=4A$

b)

$R_{123456}=9\Omega$

$I_t=4A$

c)

$R_{123456}=3\Omega$ $I_t=4A$

d)

$R_{123456}=3\Omega$

$I_t=8A$

e)

$R_{123456}=4\Omega$ $I_t=2A$

9.

Calculate the Total Resistance and de Total Current:

a)

$R_{1234}=\frac{2}{3}\Omega$

$I_t=18A$

b)

$R_{1234}=\frac{3}{2}\Omega$

$I_t=4A$

c)

$R_{1234}=\frac{2}{3}\Omega$ $I_t=4A$

d)

$R_{1234}=3\Omega$

$I_t=18A$

e)

$R_{1234}=4\Omega$ $I_t=72A$

10.

Calculate the Total Resistance and de Total Current:

a)

$R_{123}=8\Omega$ $I_t=3A$

b)

$R_{123}=5\Omega$ $I_t=7,2A$

c)

$R_{123}=9\Omega$ $I_t=4A$

d)

$R_{123}=5\Omega$ $I_t=4,8A$

e)

El circuito no es viable

Electricity III

Total questions: 10

Worksheet time: 3hrs 30mins

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