Monitoring and Measuring AC - Calculations

• 4∙2 × 10⁻³ Hz

• 8∙3 × 10−3 Hz

• 0∙28 Hz

• 4∙2 Hz

• 8∙3 Hz

• 1 ms/div

• 10 ms/div

• 20 ms/div

• 100 ms/div

• 1000 ms/div

Determine the peak voltage and frequency of this signal.

• Peak Voltage = 20 V, Frequency = 250 Hz

• Peak Voltage = 15 V, Frequency = 25 Hz

• Peak Voltage = 30 V, Frequency = 250 Hz

• Peak Voltage = 20 V, Frequency = 500 Hz

• Peak Voltage = 15 V, Frequency = 50 Hz

An oscilloscope is connected across the 1·0 kΩ resistor. The oscilloscope control settings and the trace displayed on its screen are shown.

Determine the peak voltage across the 1·0 kΩ resistor

• 0.2 V

• 0.6 V

• 1.2 V

• 12 V

• 0.4 V

Determine the peak voltage

• 3 V

• 15 V

• 30 V

• 7.5 V

Determine the rms voltage

• 10.6 V

• 15 V

• 21 V

• 2.1 V

Determine the frequency of the wave

• 2 Hz

• 0.8 Hz

• 800 Hz

• 200 Hz

A peak current of 5.66 A flows through a 3 Ohm lamp.

Calculate the power of the lamp

• 48 W

• 96 W

• 12 W

• 5.66 W

Calculate the rms voltage

• 10.6 V

• 15 V

• 30 V

• 8.8 V

Calculate the frequency of the signal

• 50 Hz

• 25 Hz

• 200 Hz

• 80 Hz