If a circuit has a total resistance of 10Ω and a current of 2A flowing through i
Practice Questions
Q1
If a circuit has a total resistance of 10Ω and a current of 2A flowing through it, what is the voltage across the circuit?
5V
10V
20V
15V
Questions & Step-by-Step Solutions
If a circuit has a total resistance of 10Ω and a current of 2A flowing 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 10 ohms (Ω) and a current (I) of 2 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 = 2A * 10Ω.
Step 4: Calculate the result: 2 * 10 = 20.
Step 5: Conclude that the voltage across the circuit is 20 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 and the resistance (R) of the conductor, expressed as V = I * R.
