A potentiometer wire has a resistance of 10 ohms and is connected to a 5 V batte
Practice Questions
Q1
A potentiometer wire has a resistance of 10 ohms and is connected to a 5 V battery. What is the current flowing through the wire?
0.5 A
1 A
2 A
5 A
Questions & Step-by-Step Solutions
A potentiometer wire has a resistance of 10 ohms and is connected to a 5 V battery. What is the current flowing through the wire?
Correct Answer: 0.5 A
Step 1: Identify the values given in the problem. We have a voltage (V) of 5 volts and a resistance (R) of 10 ohms.
Step 2: Recall Ohm's law, which states that Voltage (V) = Current (I) x Resistance (R).
Step 3: Rearrange the formula to find the current (I). This gives us I = V / R.
Step 4: Substitute the values into the formula. We have I = 5 V / 10 ohms.
Step 5: Perform the division. 5 divided by 10 equals 0.5.
Step 6: Conclude that the current flowing through the wire is 0.5 A.
Ohm's Law – Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor.
