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Select the correct answer.

How much power is produced by a flashlight that has a voltage of 12 volts and a current of [tex]$6.5 \times 10^{-2}$[/tex] amp?

A. 0.78 watts
B. 78 watts
C. 190 watts
D. 0.0054 watts
E. 1.9 watts


Sagot :

To determine the power produced by a flashlight with a given voltage and current, we can use the formula:

[tex]\[ P = V \times I \][/tex]

where [tex]\( P \)[/tex] is the power in watts, [tex]\( V \)[/tex] is the voltage in volts, and [tex]\( I \)[/tex] is the current in amperes.

Given:
[tex]\[ V = 12 \, \text{volts} \][/tex]
[tex]\[ I = 6.5 \times 10^{-2} \, \text{amp} \][/tex]

Substitute these values into the formula:

[tex]\[ P = 12 \, \text{volts} \times 6.5 \times 10^{-2} \, \text{amp} \][/tex]

Upon solving this, we find:

[tex]\[ P = 0.78 \, \text{watts} \][/tex]

Therefore, the correct answer is:
D. 0.78 watts