Question: If a circuit has a total resistance of 10 Ω and a current of 2 A, what is the voltage across the circuit?
Options:
5 V
10 V
20 V
15 V
Correct Answer: 20 V
Solution:
Using Ohm\'s Law: V = I * R = 2 A * 10 Ω = 20 V.
If a circuit has a total resistance of 10 Ω and a current of 2 A, what is the vo
Practice Questions
Q1
If a circuit has a total resistance of 10 Ω and a current of 2 A, what is the voltage across the circuit?
5 V
10 V
20 V
15 V
Questions & Step-by-Step Solutions
If a circuit has a total resistance of 10 Ω and a current of 2 A, 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 = 2 A * 10 Ω.
Step 4: Calculate the voltage: 2 A * 10 Ω = 20 V.
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.
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