If a circuit has a total impedance of 4Ω and a current of 3A, what is the voltag
Practice Questions
Q1
If a circuit has a total impedance of 4Ω and a current of 3A, what is the voltage across the circuit?
12V
10V
15V
8V
Questions & Step-by-Step Solutions
If a circuit has a total impedance of 4Ω and a current of 3A, what is the voltage across the circuit?
Step 1: Identify the values given in the problem. The total impedance (Z) is 4Ω and the current (I) is 3A.
Step 2: Recall Ohm's law, which states that Voltage (V) = Current (I) * Impedance (Z).
Step 3: Substitute the values into the formula: V = 3A * 4Ω.
Step 4: Calculate the result: 3 * 4 = 12.
Step 5: Conclude that the voltage across the circuit is 12V.
Ohm's Law – Ohm's Law states that the voltage (V) across a circuit is equal to the current (I) flowing through it multiplied by the impedance (Z) of the circuit.
