Today Waec physics practical answers 2021

Today Waec physics practical answers 2021

Here is the waec physics practical answers 2021

Physics practical alternate B

1b(i). _The moment of a force is defined as the turning effect of the force about a pivot and is the product of the force (F) and the perpendicular distance (d) from the line of action of the force to the pivot._
1Bi) The moment of a force is a measure of its tendency to cause a body to rotate about a specific point or axis
Fig.3a
Use ruler to measure for di
Di= di x 5cm

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Fig.3b
V1= 0.73v
V2= 0.94v
V3= 1.08v
V4= 1.15v
V5= 1.23v
V6= 1.26v
*Q3bi.*
Moving coil galvanometer is an electromagnetic device that can measure small values of current. It consists of:
1. Permanent horseshoe magnets
2. coil
3. Soft iron core
4. Pivoted spring
5. Non-metallic frame
6. scale and pointer.
Pick any four of them
Fig.2a
Use protractor to measure the angles starting from left
Fig.2b and 2c
Use ruler đź“Ź measure from left to right

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