Embedded Files
F=BIL
KEy question: What factors affect the strength of a motor
KEy question: What factors affect the strength of a motor
Task 1 - Quick recall
Task 1 - Quick recall
Have a look at the do now task on the companion sheet.
How is your Left hand rule?
Task 2 - Intro video
Task 2 - Intro video
This video recaps all that we have learnt so far and introduces the method for calculating the strength of the force produced.
Answer the questions about the video on the companion sheet.
Task 3 - Know the equation
Task 3 - Know the equation
Complete the names, units and unit symbols on the companion sheet.
Force in Newtons (N)
Flux Density in Tesla (T)
Current in Amps (A)
Length of wire in Metres (m)
Task 4 - Worked example
Task 4 - Worked example
Calculate the force produced when:
Calculate the force produced when:
- Magnetic Flux = 0.5T
- Wire Length = 10m
- Current = 3 amps
F = ?N B = 0.5T I = 3A L = 10m
F = BIL
F = 0.5 x 3 x 10
F = 15N
Now complete the practise questions on the companion sheet
Now complete the practise questions on the companion sheet
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