Question

How much energy does an electric hair dryer use if it draws 8.3 amps of current when using 120 volts for 5.0 minutes?

Answer 1

0.083kwh is the answer your welcome

Answer 2

Answer: The energy drawn by electric hair dryer is 2,98,800 J

Step-by-step explanation:

To calculate the power of the electric hair dryer, we use the equation:

`P=I* V`

where,

P = power of electric hair dryer

I = Current of electric hair dryer = 8.3 A

V = voltage of electric hair dryer = 120 V

Putting values in above equation, we get:

`P=8.3* 120=996W`

To calculate the energy of electric hair dryer, we use the equation:

`E=P* t`

where,

E = energy of electric hair dryer = ?

P = Power of electric hair dryer = 996 W

t = time taken = 5.0 min = 300 s (Conversion factor: 1 min = 60 sec)

Putting values in above equation, we get:

`E=996* 300=2,98,800J`

Hence, the energy drawn by electric hair dryer is 2,98,800 J