Phys 162 Lab 7

What does the oscilloscope primarily display?

•  Resistance of a component

•  Frequency spectrum of sound

• Time-varying voltage signals

• Stored energy in capacitors

If a waveform covers 6 vertical divisions and the vertical sensitivity is 2 V/div, what is the peak-to-peak voltage?

• 2 V

• 6 V

• 12 V

•  3 V

What happens to the displayed waveform when the horizontal sensitivity is decreased (e.g., from 1 ms/div to 0.2 ms/div)?

• The waveform becomes slower

• The waveform stretches out

• More cycles are visible

• Fewer cycles are visible

What is the relationship between voltage and current in an ideal transformer?

•  Both voltage and current increase together

• Voltage increases while current stays constant

  
  

• As voltage increases, current decreases

•  Voltage and current are unrelated

  
  

What is the main function of a transformer in an electrical circuit?

•  Convert AC to DC

• Measure signal amplitude

•  Change voltage levels between circuits

• Store electrical energy