Final answer:
Tech B is correct. Watts are units of electrical power, which can be calculated by multiplying the voltage by the current flowing through a circuit.
Step-by-step explanation:
In this case, Tech B is correct. Watts are indeed units of electrical power. Power is the rate at which energy is converted or used, and it is expressed in watts (W). Watts can be calculated by multiplying the voltage (V) by the current (I) flowing through a circuit. The formula for power is P = VI.
Tech B is correct. Watts are units of electrical power, which can be calculated by multiplying the voltage by the current flowing through a circuit.
So, to determine the power used by a 12-volt light with 10 amps flowing through it, we can use the formula P = 12V * 10A = 120W. Therefore, the light is using 120 watts of electricity.