# Instantaneous value for an angle

## Instantaneous value calculater

On this page you can calculate the instantaneous value of a sinusoidal oscillation at a certain angular position.

The voltage can be entered as an effective or peak value. The angle can be selected between degrees and radians.

Instantaneous value calculator

 Input Voltage Effective Peak voltage Angle Degree Radian Decimal places 0 1 2 3 4 6 8 10 Result Effective voltage Peak voltage Angle in degree Voltage to the angle

## Formula for calculating the instantaneous value

When a rotor rotates uniformly in a homogeneous magnetic field, the induced voltage changes sinusoidally. If the peak value û is known, the instantaneous value can be determined from the angle.

$$\displaystyle u=û · sin(α)$$

#### Legend

 $$\displaystyle û$$ Peak voltage $$\displaystyle u$$ Instantaneous value $$\displaystyle α$$ Angle of the instantaneous value

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