Answer : The amount of current used to warm your feet is, 0.1 A
Explanation :
To calculate the current we are using ohm's law:
[tex]V=IR[/tex]
where,
V = voltage = 9 V
I = current = ?
R = resistance = 90 Ω
Now put all the given values in the above formula, we get the current.
[tex]V=IR[/tex]
[tex]9V=I\times 90\Omega[/tex]
[tex]I=0.1A[/tex]
Therefore, the amount of current used to warm your feet is, 0.1 A
