A circuit has a total resistance of 12Ω and a current of 1.5A. What is the volta
Practice Questions
Q1
A circuit has a total resistance of 12Ω and a current of 1.5A. What is the voltage across the circuit? (2021)
18V
12V
15V
9V
Questions & Step-by-Step Solutions
A circuit has a total resistance of 12Ω and a current of 1.5A. What is the voltage across the circuit? (2021)
Step 1: Identify the values given in the problem. We have total resistance (R) = 12Ω and current (I) = 1.5A.
Step 2: Recall Ohm's law, which states that Voltage (V) = Current (I) * Resistance (R).
Step 3: Substitute the values into the formula: V = 1.5A * 12Ω.
Step 4: Calculate the voltage: 1.5 * 12 = 18.
Step 5: Conclude that the voltage across the circuit is 18V.
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.
