Electromagnetism (6.7.2.1) | AQA GCSE Combined Science: Trilogy (8464) — Physics — Higher | KnowledgeSet

Electromagnetism

Physics (Combined Science) · GCSE · AQA · AQA GCSE Combined Science: Trilogy (8464) — Physics — Higher · Specification point · 6.7.2.1 · Magnetism and electromagnetism · The motor effect

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Learning Objectives

6.7.2.1 Electromagnetism

Content	Key opportunities for skills development
$When a current flows through a conducting wire a magnetic field is produced around the wire. The strength of the magnetic field depends on the current through the wire and the distance from the wire. Shaping a wire to form a solenoid increases the strength of the magnetic field created by a current through the wire. The magnetic field inside a solenoid is strong and uniform. The magnetic field around a solenoid has a similar shape to that of a bar magnet. Adding an iron core increases the strength of the magnetic field of a solenoid. An electromagnet is a solenoid with an iron core. Students should be able to:$
$describe how the magnetic effect of a current can be demonstrated draw the magnetic field pattern for a straight wire carrying a current and for a solenoid (showing the direction of the field) explain how a solenoid arrangement can increase the magnetic effect of the current.$	$WS 2.2$

Content

Key opportunities for skills development

When a current flows through a conducting wire a magnetic field is produced around the wire. The strength of the magnetic field depends on the current through the wire and the distance from the wire. Shaping a wire to form a solenoid increases the strength of the magnetic field created by a current through the wire. The magnetic field inside a solenoid is strong and uniform. The magnetic field around a solenoid has a similar shape to that of a bar magnet. Adding an iron core increases the strength of the magnetic field of a solenoid. An electromagnet is a solenoid with an iron core. Students should be able to:

describe how the magnetic effect of a current can be demonstrated draw the magnetic field pattern for a straight wire carrying a current and for a solenoid (showing the direction of the field) explain how a solenoid arrangement can increase the magnetic effect of the current.

WS 2.2