If an electric heater has a resistance of 17.32 ohms and requires a current of 6.93 amperes, what is the circuit voltage?

• A. 100.00 V
• B. 120.03 V
• C. 130.50 V
• D. 110.00 V

Answer: (B)

To determine the circuit voltage, Ohm's Law can be used, which states that Voltage (V) equals Current (I) multiplied by Resistance (R). In this case, the resistance is given as 17.32 ohms and the current as 6.93 amperes.

Using the formula:

[

V = I \times R

]

We substitute the known values:

[

V = 6.93 , \text{A} \times 17.32 , \Omega

]

Calculating this gives:

[

V = 120.03 , \text{V}

]

This calculation confirms that the voltage required for the electric heater is indeed 120.03 volts.

The provided answer reflects the application of fundamental electrical principles, ensuring that the correct use of Ohm's Law leads to the proper determination of voltage in the circuit. This understanding is key for any work related to electrical systems, where calculating voltage from resistance and current is a common requirement.