Practice Principle - 7.1 | Chapter 5: Electromagnetic Induction and Alternating | ICSE Class 12 Physics
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a transformer?

πŸ’‘ Hint: Think about how it affects electricity in homes.

Question 2

Easy

Define a step-up transformer.

πŸ’‘ Hint: Focus on the number of turns in the coils.

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 principle do transformers operate on?

  • Electromagnetic Induction
  • Vibration
  • Thermal Conductivity

πŸ’‘ Hint: Remember what induces voltage in the coils.

Question 2

A step-up transformer produces higher output voltage compared to input voltage.

  • True
  • False

πŸ’‘ Hint: Consider the meaning of step-up.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A transformer has 100 turns in the primary coil and 200 turns in the secondary. If the primary voltage is 120V, what is the secondary voltage?

πŸ’‘ Hint: Consider the formula relating turns and voltage.

Question 2

Explain how reducing the number of turns in the secondary coil of a transformer impacts voltage and current.

πŸ’‘ Hint: Review the transformer’s function in relation to power conservation.

Challenge and get performance evaluation