Physics Class 10 Chapter 19: Electromagnetism
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Chapter summary
Chapter 19 of Physics for Class 10 is called "Electromagnetism". It covers 17 learning outcomes of the Federal Board syllabus. You will learn to: describe an experiment to demonstrate electromagnetic induction.; use the fact that the magnitude of an induced e.m.f. is affected by (a) the rate of change. Parhayi.com has 216 MCQs, 43 short questions and 19 long questions for this chapter.
Topics in this chapter
- Describe an experiment to demonstrate electromagnetic induction.
- Use the fact that the magnitude of an induced e.m.f. is affected by (a) the rate of change…
- Use the fact that the effect of the current produced by an induced e.m.f. is to oppose the…
- Describe how a.c. generators work
- Sketch and interpret graphs of e.m.f. against time for simple a.c. generators
- Describe the pattern and direction of the magnetic field due to currents in straight wires…
- State the effect on the magnetic field of changing the magnitude and direction of the current.
- Describe an experiment to show that a force acts on current carrying conductor in a…
- State and use the relative directions of force, magnetic field and current.
- Describe the magnetic field patterns between currents in parallel conductors and relate…
- State that a current-carrying coil in a magnetic field may experience a turning effect and…
- Describe the operation of an electric motor, including the action of a split-ring…
- Explain the principle of operation of a simple iron-cored transformer.
- Use the terms primary, secondary coils and step-up and step- down transformer.
- Use the equation V p / Vs = Np /Ns
- Justify the advantages of high voltage transmission.
- Mixed topics
Sample questions
Try these questions from the chapter. The answers are for Premium students.
- How does a generator differ from a motor, and what is their relationship to each other? (3 marks)
- A transformer in an adapter steps up 115 V to the 230 V needed for a hair dryer. A current of 5 A flows through the hair dryer. Assuming the transformer is 100 % efficient, calculate the current drawn from the mains supply. (3 marks)
- State Fleming’s left-hand rule. (3 marks)
What Premium gives you in this chapter
- 216 MCQs with answers and explanations
- 43 short questions with full answers
- 19 long questions with answers
- 13 Learn cards
- 30 Activities and games
- chapter tests that show your weak topics
Physics explains how the world works, from motion and forces to heat, light and magnets. Learn each idea in simple steps, check the units, and practise numericals every day.
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