If a circuit has a total resistance of 5Ω and a current of 3A flows through it,
Practice Questions
Q1
If a circuit has a total resistance of 5Ω and a current of 3A flows through it, what is the voltage across the circuit?
10V
15V
20V
25V
Questions & Step-by-Step Solutions
If a circuit has a total resistance of 5Ω and a current of 3A flows through it, what is the voltage across the circuit?
Step 1: Identify the values given in the problem. We have a total resistance (R) of 5 ohms (Ω) and a current (I) of 3 amperes (A).
Step 2: Recall Ohm's law, which states that Voltage (V) = Current (I) * Resistance (R).
Step 3: Substitute the values into the formula: V = 3A * 5Ω.
Step 4: Calculate the result: 3 * 5 = 15.
Step 5: Conclude that the voltage across the circuit is 15 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 resistance (R) as the proportionality constant, expressed as V = I * R.
