Question: If a current of 2 A flows through a resistor of 5 ohms, what is the voltage across the resistor?
Options:
5 V
10 V
15 V
20 V
Correct Answer: 10 V
Solution:
Using Ohm\'s law, V = I * R = 2 A * 5 ohms = 10 V.
If a current of 2 A flows through a resistor of 5 ohms, what is the voltage acro
Practice Questions
Q1
If a current of 2 A flows through a resistor of 5 ohms, what is the voltage across the resistor?
5 V
10 V
15 V
20 V
Questions & Step-by-Step Solutions
If a current of 2 A flows through a resistor of 5 ohms, what is the voltage across the resistor?
Correct Answer: 10 V
Step 1: Identify the current flowing through the resistor. In this case, the current (I) is 2 A.
Step 2: Identify the resistance of the resistor. Here, the resistance (R) is 5 ohms.
Step 3: Use Ohm's law formula, which is V = I * R, to find the voltage (V).
Step 4: Substitute the values into the formula: V = 2 A * 5 ohms.
Step 5: Calculate the result: 2 A * 5 ohms = 10 V.
Step 6: Conclude that the voltage across the resistor is 10 V.
Ohm's Law – Ohm's Law states that the voltage (V) across a resistor is equal to the current (I) flowing through it multiplied by the resistance (R) of the resistor.
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