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In a potentiometer setup, if the wire has a resistance of 10 ohms and a current

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Question: In a potentiometer setup, if the wire has a resistance of 10 ohms and a current of 0.5 A flows through it, what is the potential drop across the wire?

Options:

  1. 2.5 V
  2. 5 V
  3. 10 V
  4. 15 V

Correct Answer: 5 V

Solution: 

The potential drop is calculated using Ohm\'s law: V = IR = 0.5 A * 10 ohms = 5 V.

In a potentiometer setup, if the wire has a resistance of 10 ohms and a current

Practice Questions

Q1
In a potentiometer setup, if the wire has a resistance of 10 ohms and a current of 0.5 A flows through it, what is the potential drop across the wire?
  1. 2.5 V
  2. 5 V
  3. 10 V
  4. 15 V

Questions & Step-by-Step Solutions

In a potentiometer setup, if the wire has a resistance of 10 ohms and a current of 0.5 A flows through it, what is the potential drop across the wire?
  • Step 1: Identify the resistance of the wire, which is given as 10 ohms.
  • Step 2: Identify the current flowing through the wire, which is given as 0.5 A.
  • Step 3: Recall Ohm's law, which states that Voltage (V) = Current (I) * Resistance (R).
  • Step 4: Substitute the values into the formula: V = 0.5 A * 10 ohms.
  • Step 5: Calculate the potential drop: 0.5 * 10 = 5 V.
  • Ohm's Law – Ohm's Law states that the potential difference (voltage) across a conductor is directly proportional to the current flowing through it, given by the formula V = IR.
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