Practice Current in Conductors - 2.2 | Chapter 2: Current Electricity | ICSE Class 12 Physics
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2.2 - Current in Conductors

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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define drift velocity.

💡 Hint: Think about how electrons move in response to an electric field.

Question 2

Easy

What is the unit of electric current?

💡 Hint: Recall the SI unit for measuring electric current.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the drift velocity?

  • The speed of electrons in a circuit
  • The average speed of electrons gaining velocity due to electric field
  • The total speed of a conductor

💡 Hint: Think about how potential difference influences electron movement.

Question 2

True or False: Current can flow through a conductor without an applied potential difference.

  • True
  • False

💡 Hint: Consider what initiates the flow of current.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A copper rod with a cross-sectional area of 1 mm² has 8.5 x 10²² free electrons per cubic meter. If these electrons drift with a velocity of 0.02 m/s, what is the current flowing through this rod?

💡 Hint: Make sure to use the correct unit conversions.

Question 2

If the drift velocity of electrons in a conductor is doubled while keeping the cross-sectional area and number of free electrons constant, how does the current change?

💡 Hint: Recall how changes in drift velocity directly influence the current equation.

Challenge and get performance evaluation