To determine the welding power in watts, we need to understand the basic relationship between volts, amperes, and power.
Step-by-Step Solution:
1. Identify the Units and Their Relationships:
- Volts (V) measure the electric potential difference.
- Amperes (A) measure the electric current.
- Watts (W) measure power.
2. Recall the Power Formula:
- In electrical systems, power (P) is calculated using the formula:
[tex]\[
P = V \times I
\][/tex]
where [tex]\( V \)[/tex] is voltage (in volts) and [tex]\( I \)[/tex] is current (in amperes).
3. Analyze the Options:
- Option Oa: Volts divided by amperes gives the unit of ohms, which measures resistance, not power.
- Option Ob: Welding amperage alone represents current (amperes) and does not provide a complete measure of power without considering voltage.
- Option Oc: Voltage setting alone represents volts and does not provide a complete measure of power without considering current.
- Option Od: Volts multiplied by amperes results in watts, which is the unit of power.
4. Match to the Power Formula:
- From the above analysis, the correct relationship that represents power is "volts multiplied by amperes."
Therefore, the welding power in watts is equal to "volts multiplied by amperes."
The correct answer is:
Od. volts multiplied by amperes
