If a circuit has a total resistance of 8Ω and a current of 4A, what is the volta
Practice Questions
Q1
If a circuit has a total resistance of 8Ω and a current of 4A, what is the voltage across the circuit? (2023)
32V
24V
16V
12V
Questions & Step-by-Step Solutions
If a circuit has a total resistance of 8Ω and a current of 4A, what is the voltage across the circuit? (2023)
Step 1: Identify the values given in the problem. We have total resistance (R) = 8Ω and current (I) = 4A.
Step 2: Recall Ohm's law, which states that Voltage (V) = Current (I) * Resistance (R).
Step 3: Substitute the values into the formula: V = 4A * 8Ω.
Step 4: Calculate the voltage: 4 * 8 = 32.
Step 5: Conclude that the voltage across the circuit is 32V.
Ohm's Law – Ohm's Law states that the voltage (V) across a conductor is directly proportional to the current (I) flowing through it, with the resistance (R) being the constant of proportionality, expressed as V = IR.
