What Jamb Sets In Physics: Basic Definitions Of Electromagnetic Induction

In this episode of my Jamb series, I will be introducing you to Electromagnetic induction as one of the topics Jamb sets in her CBT examination.

For now, only the basic definitions of Electromagnetic Induction would be touched. I will as well try to explain two or more points in the topic and finally drop a practice question. Without wasting much time, let’s begin the journey….

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If someone asks you the question, What is Electromagnetic Induction? You don’t need to think too much. A closer look at the the word Electromagnetic or Electromagnetism should give you enough idea.

Now, Electromagnetic induction is the production of electricity from magnet. Where Electro means Electricity or Current and Magnetic means magnet or magnetism.

In electromagnetic induction, current is produced without battery. There is one important fact you should note.. Electromagnetic Induction is the reverse effect of magnetic effect of current.

In addition, Electromagnetic induction is the process whereby current is produced in a conductor due to relative motion with a magnet. Hence, no current is induced when the magnet and the conductor are both stationary or both moving with same speed in the same direction.

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Like you already know, conductors are materials that allow the passage of current through them easily. Insulators, on the other hand, has a strong resistance to the flow of electrons or current due to large forbidden band/gap.

Question for You: What gives rise to induced current in a complete circuit?

Other Episodes On The Series:

pt 1: What to know about Jamb
pt 2: How a dullard can pass Jamb

pt 3: Best time to read for Jamb
pt 4: Writing Jamb without knowing computer

pt 5: Jamb questions and answers
pt 6: Make jamb in one sitting

pt 7: Materials you need to prepare well
pt 8: Jamb subjects to register

pt 9: Reasons to jot down facts
pt 10: How to jot when reading

> See latest post on my Jamb series.

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