If a resistor has a current of 2A flowing through it and a voltage of 10V across
Practice Questions
Q1
If a resistor has a current of 2A flowing through it and a voltage of 10V across it, what is the resistance? (2023)
2Ω
5Ω
10Ω
20Ω
Questions & Step-by-Step Solutions
If a resistor has a current of 2A flowing through it and a voltage of 10V across it, what is the resistance? (2023)
Step 1: Identify the values given in the problem. We have a current (I) of 2A and a voltage (V) of 10V.
Step 2: Recall Ohm's Law, which states that Resistance (R) is equal to Voltage (V) divided by Current (I). The formula is R = V / I.
Step 3: Substitute the values into the formula. Replace V with 10V and I with 2A: R = 10V / 2A.
Step 4: Perform the division. Calculate 10 divided by 2, which equals 5.
Step 5: Write down the result. The resistance (R) is 5Ω.
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). It is expressed as R = V / I.