A series of free GCSE/IGCSE Physics Notes and Lessons.
Describe how a current flowing through a wire generates a magnetic field.
Explain how a solenoid can increase the magnetic effect of a current.
Draw a magnetic field pattern for a straight wire carrying a current and for a solenoid.
What electromagnetism is
Interpret diagrams of electromagnetic devices to explain how they work: Relay, doorbell.
Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.