Practice EXERCISES - 8.6 | 8. ELECTROMAGNETIC WAVES | CBSE 12 Physics Part 1
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EXERCISES

8.6 - EXERCISES

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the capacitance of a capacitor with a radius of 12 cm and separation of 5 cm?

💡 Hint: Remember to convert measurements to meters.

Question 2 Easy

What are the units of capacitance?

💡 Hint: Think of the basic formula for capacitance.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the term 'displacement current' refer to?

A type of conduction current
Current due to changing electric fields
Electric current at rest

💡 Hint: Think about how it relates to Maxwell's theoretical framework.

Question 2

Kirchhoff's Junction Rule can be stated as:

True
False

💡 Hint: Review the principles of current conservation in circuits.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A capacitor charges with a constant current of 1.5 A. Calculate the capacitance if the voltage across the plates increases from 0 to 300 V in 20 seconds.

💡 Hint: Consider the charging equation of capacitors and use the quadratic relationship.

Challenge 2 Hard

An electromagnetic wave of frequency 60 MHz is propagating. Calculate both its wavelength and amplitude of the electric field if the amplitude of the magnetic field is 800 nT.

💡 Hint: Use relationships between frequency, speed of light, and electromagnetic field strengths.

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