What is the definition of the magnitude of the electric field e in terms of the magnitude of a test charge q and the magnitude of the force on the test charge f?

E = F/q

Explanation:

Electric Field (E) : Electric Field (E) of an electrostatic field is defined as the force (F), per unit test charge (q) which it exert at that point. Its direction is that of the force exerted on a positive charge. The S.I unit of Electric field is Newtons per coulombs. (N/C).

Electric Field (E) can be expressed mathematically as,

E = F/q

Where F = Electrostatic force (Newton), q = charge (coulombs), E = Electric field.

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.