What is the current through a 15Ω resistor connected to a 45V source? (2021)

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Question: What is the current through a 15Ω resistor connected to a 45V source? (2021)

Options:

Correct Answer: 3A

Exam Year: 2021

Solution:

Using Ohm\'s law, I = V/R = 45V / 15Ω = 3A.

What is the current through a 15Ω resistor connected to a 45V source? (2021)

What is the current through a 15Ω resistor connected to a 45V source? (2021)

Step 1: Identify the values given in the problem. We have a voltage (V) of 45 volts and a resistance (R) of 15 ohms.
Step 2: Recall Ohm's law, which states that current (I) is equal to voltage (V) divided by resistance (R). The formula is I = V / R.
Step 3: Substitute the values into the formula. Replace V with 45 and R with 15: I = 45V / 15Ω.
Step 4: Perform the division. Calculate 45 divided by 15, which equals 3.
Step 5: State the result. The current (I) through the resistor is 3 amperes (A).

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