If a circuit has a total resistance of 5Ω and a current of 2A, what is the volta
Practice Questions
Q1
If a circuit has a total resistance of 5Ω and a current of 2A, what is the voltage across the circuit? (2022)
10V
5V
2V
1V
Questions & Step-by-Step Solutions
If a circuit has a total resistance of 5Ω and a current of 2A, what is the voltage across the circuit? (2022)
Step 1: Identify the values given in the problem. We have a total resistance (R) of 5 ohms (Ω) and a current (I) of 2 amperes (A).
Step 2: Recall Ohm's law, which states that voltage (V) is equal to current (I) multiplied by resistance (R). The formula is V = I * R.
Step 3: Substitute the values into the formula. Replace I with 2A and R with 5Ω: V = 2A * 5Ω.
Step 4: Perform the multiplication: 2 * 5 = 10.
Step 5: Write the final answer. The voltage (V) across the circuit is 10 volts (V).
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 = I * R.
