AC Principles

positive half-cycle - which portion of the cycle is it?

• - the portion of the waveform above zero

• - the portion of the waveform below zero

• - the portion of the waveform above and below zero

The tangent ratio of a right angled triangle is?

• opp/hyp

• adj/hyp

• opp/adj

The cosine ratio of a right angled triangle is?

• opp/hyp

• adj/hyp

• opp/adj

peak value (VM or IM) - the maximum value of the waveform which how many times?

• the maximum value of the waveform which occurs once, positive maximum and negative maximum

• the maximum value of the waveform which occurs twice, positive maximum and negative maximum

• the maximum value of the waveform which occurs three times, positive maximum and negative maximum

• the maximum value of the waveform which occurs only in the negative maximum

negative half-cycle - Which portion of the waveform is it?

• - the portion of the waveform above zero

• - the portion of the waveform below zero

• - the portion of the waveform above and below zero

The sine ratio of a right angled triangle is?

• opp/hyp

• adj/hyp

• opp/adj

Which of the following equations is the transposition of the one displayed?

peak to peak value (VPP or IPP) - Is the magnitude of the wave from which point to which point?

• peak to peak value (VPP or IPP) - the magnitude of the wave from the beginning of the cycle to the end of the cycle.

• peak to peak value (VPP or IPP) - the magnitude of the wave from the maximum

  positive value to the horizontal line.

• peak to peak value (VPP or IPP) - the magnitude of the wave from the maximum

  positive value to the maximum negative value.

• peak to peak value (VPP or IPP) - the magnitude of the wave from the maximum

  negative value to the horizontal line.

When moving a conductor in a circular path within a magnetic field producing a varying emf. What wave form is produced?

• cosine wave

• digital square wave

• sine wave

• mexican wave

period (T) - the time taken to complete what?

 

• period (T) - the time taken to complete half a cycle, measured in seconds.

   

• period (T) - the time taken to complete the frequency, measured in seconds.

   

• period (T) - the time taken to complete one cycle, measured in seconds.