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A potentiometer wire has a resistance of 10 ohms and is connected to a 5 V batte

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Question: 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?

Options:

  1. 0.5 A
  2. 1 A
  3. 2 A
  4. 5 A

Correct Answer: 1 A

Solution:

Using Ohm\'s law (V = IR), the current can be calculated as I = V/R = 5 V / 10 ohms = 0.5 A.

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?
  1. 0.5 A
  2. 1 A
  3. 2 A
  4. 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.
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