If a circuit has a total resistance of 8Ω and a current of 2A flows through it,
Practice Questions
Q1
If a circuit has a total resistance of 8Ω and a current of 2A flows through it, what is the voltage across the circuit? (2020)
4V
8V
12V
16V
Questions & Step-by-Step Solutions
If a circuit has a total resistance of 8Ω and a current of 2A flows through it, what is the voltage across the circuit? (2020)
Step 1: Identify the values given in the problem. We have total resistance (R) = 8Ω and current (I) = 2A.
Step 2: Recall Ohm's law, which states that Voltage (V) = Current (I) * Resistance (R).
Step 3: Substitute the values into the formula: V = 2A * 8Ω.
Step 4: Calculate the result: V = 16V.
Step 5: Conclude that the voltage across the circuit is 16V.
Ohm's Law – Ohm's Law states that the voltage (V) across a conductor is directly proportional to the current (I) flowing through it and the resistance (R) of the conductor, expressed as V = I * R.
