In a DC circuit, if the voltage across a 5Ω resistor is 15V, what is the current

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Question: In a DC circuit, if the voltage across a 5Ω resistor is 15V, what is the current through the resistor?

Options:

Correct Answer: 3A

Solution:

Using Ohm\'s Law, I = V / R = 15V / 5Ω = 3A.

In a DC circuit, if the voltage across a 5Ω resistor is 15V, what is the current through the resistor?

In a DC circuit, if the voltage across a 5Ω resistor is 15V, what is the current through the resistor?

Step 1: Identify the values given in the problem. We have a voltage (V) of 15 volts and a resistance (R) of 5 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 15V and R with 5Ω: I = 15V / 5Ω.
Step 4: Perform the division. Calculate 15 divided by 5, which equals 3.
Step 5: State the result. The current (I) through the resistor is 3 amperes (3A).

Ohm's Law – Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor.