Question: If a resistor has a resistance of 10Ω and a current of 2A flows through it, what is the voltage across the resistor? (2023)
Options:
5V
10V
20V
30V
Correct Answer: 20V
Exam Year: 2023
Solution:
Using Ohm\'s Law, V = I * R = 2A * 10Ω = 20V.
If a resistor has a resistance of 10Ω and a current of 2A flows through it, what
Practice Questions
Q1
If a resistor has a resistance of 10Ω and a current of 2A flows through it, what is the voltage across the resistor? (2023)
5V
10V
20V
30V
Questions & Step-by-Step Solutions
If a resistor has a resistance of 10Ω and a current of 2A flows through it, what is the voltage across the resistor? (2023)
Step 1: Identify the values given in the problem. We have a resistance (R) of 10 ohms (Ω) and a current (I) of 2 amperes (A).
Step 2: Recall Ohm's Law, which states that Voltage (V) = Current (I) * Resistance (R).
Step 3: Substitute the values into the formula: V = 2A * 10Ω.
Step 4: Calculate the result: 2 * 10 = 20.
Step 5: Conclude that the voltage across the resistor is 20 volts (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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