Question

How much power is used by a contact lens heating unit draws 0.05 A of current from a 181 V line?

Answer 1

To calculate the power used by the contact lens heating unit, we can use the formula:

Power (P) = Current (I) x Voltage (V)

In this case, we know the current is 0.05 A and the voltage is 181 V. Plugging these values into the formula gives:

Power (P) = 0.05 A x 181 V

Power (P) = 9.05 W

So the contact lens heating unit uses 9.05 watts of power.

Step-by-step explanation: