Practice AC VOLTAGE REPRESENTATION OF CURRENT AND VOLTAGE BY ROTATING VECTORS (PHASORS) - 7.3 | 7. ALTERNATING CURRENT | CBSE 12 Physics Part 1
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7.3 - AC VOLTAGE REPRESENTATION OF CURRENT AND VOLTAGE BY ROTATING VECTORS (PHASORS)

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a phasor?

πŸ’‘ Hint: Think of phasors as tools for visualizing AC circuit behaviors.

Question 2

Easy

In a purely resistive circuit, are voltage and current in phase?

πŸ’‘ Hint: Consider the timing of their maximum and minimum values.

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 does a phasor represent in an AC circuit?

  • DC voltage
  • Rotating vector of AC voltage
  • Power factor

πŸ’‘ Hint: Focus on the context of AC circuits.

Question 2

True or False: In an inductor, the current leads the voltage.

  • True
  • False

πŸ’‘ Hint: Review the phase relationships.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given a resistive circuit with a sinusoidal AC source, derive the equations for power, considering rms values.

πŸ’‘ Hint: Apply the relation between peak and rms values during your calculation.

Question 2

Illustrate the phase relationships and calculate average power in a series RLC circuit operating at resonance.

πŸ’‘ Hint: Recall the conditions for resonance in RLC circuits.

Challenge and get performance evaluation