Induced potential, transformers and the National Grid (physics only) (HT only) exam tips

Exam tips

• National Grid transformer reasoning exam tip for Uses of the...

  Use National Grid transformer reasoning explicitly, then link it to a calculation using primary and secondary coils and state how it avoids confusing motors and generators.

  This is actionable because it tells students to name the relevant magnetism process, apply it to the context, and separate nearby Unit 4.7 concepts.

• National Grid transformer reasoning exam tip for Uses of the...

  Use National Grid transformer reasoning explicitly, then link it to a bar magnet and plotting compass practical and state how it avoids confusing motors and generators.

  This is actionable because it tells students to name the relevant magnetism process, apply it to the context, and separate nearby Unit 4.7 concepts.

• National Grid transformer reasoning exam tip for Uses of the...

  Use National Grid transformer reasoning explicitly, then link it to a steel core electromagnet demonstration and state how it avoids confusing motors and generators.

  This is actionable because it tells students to name the relevant magnetism process, apply it to the context, and separate nearby Unit 4.7 concepts.

• National Grid transformer reasoning exam tip for Uses of the...

  Use National Grid transformer reasoning explicitly, then link it to a current-carrying wire between magnetic poles and state how it avoids confusing motors and generators.

  This is actionable because it tells students to name the relevant magnetism process, apply it to the context, and separate nearby Unit 4.7 concepts.

• National Grid transformer reasoning exam tip for Uses of the...

  Use National Grid transformer reasoning explicitly, then link it to a loudspeaker coil moving in a magnetic field and state how it avoids confusing motors and generators.

  This is actionable because it tells students to name the relevant magnetism process, apply it to the context, and separate nearby Unit 4.7 concepts.

• National Grid transformer reasoning exam tip for Uses of the...

  Use National Grid transformer reasoning explicitly, then link it to an alternator producing an AC output trace and state how it avoids confusing motors and generators.

  This is actionable because it tells students to name the relevant magnetism process, apply it to the context, and separate nearby Unit 4.7 concepts.

• National Grid transformer reasoning exam tip for Uses of the...

  Use National Grid transformer reasoning explicitly, then link it to a dynamo producing a DC output trace and state how it avoids confusing motors and generators.

  This is actionable because it tells students to name the relevant magnetism process, apply it to the context, and separate nearby Unit 4.7 concepts.

• National Grid transformer reasoning exam tip for Uses of the...

  Use National Grid transformer reasoning explicitly, then link it to a moving-coil microphone investigation and state how it avoids confusing motors and generators.

  This is actionable because it tells students to name the relevant magnetism process, apply it to the context, and separate nearby Unit 4.7 concepts.

• National Grid transformer reasoning exam tip for Microphones (HT...

  Use National Grid transformer reasoning explicitly, then link it to a step-up transformer on the National Grid and state how it avoids confusing motors and generators.

  This is actionable because it tells students to name the relevant magnetism process, apply it to the context, and separate nearby Unit 4.7 concepts.

• National Grid transformer reasoning exam tip for Microphones (HT...

  Use National Grid transformer reasoning explicitly, then link it to a step-down transformer for a low-voltage device and state how it avoids confusing motors and generators.

  This is actionable because it tells students to name the relevant magnetism process, apply it to the context, and separate nearby Unit 4.7 concepts.