In the formula for work, W = EIT, what does W represent?

In the formula for work, W = EIT, what does W represent?

• A. Energy in joules
• B. Force in newtons
• C. Watt seconds
• D. Power in watts

Answer: (C)

In the formula W = EIT, the symbol W represents work done, which can specifically be expressed in watt-seconds, also known as joules. The formula incorporates three variables: E (voltage in volts), I (current in amperes), and T (time in seconds). When you multiply voltage by current (E x I), you obtain power in watts. By then multiplying this power by time (T), you derive the total work done over that time period in watt-seconds. Considering this, watt-seconds are indeed a direct measure of work equivalent to joules, making the choice of watt-seconds the appropriate answer in this context. This demonstrates the relationship between electrical energy and work, reinforcing the concept that energy consumed over time results in a quantity of work.

In the formula W = EIT, the symbol W represents work done, which can specifically be expressed in watt-seconds, also known as joules. The formula incorporates three variables: E (voltage in volts), I (current in amperes), and T (time in seconds). When you multiply voltage by current (E x I), you obtain power in watts. By then multiplying this power by time (T), you derive the total work done over that time period in watt-seconds.

Considering this, watt-seconds are indeed a direct measure of work equivalent to joules, making the choice of watt-seconds the appropriate answer in this context. This demonstrates the relationship between electrical energy and work, reinforcing the concept that energy consumed over time results in a quantity of work.