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Physics Support Materials Higher Electricity and Electronics

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Physics Support Materials Higher Electricity and Electronics

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    1. Physics Support Materials Higher Electricity and Electronics Alternating Current and Voltage

    2. Physics Support Materials Higher Electricity and Electronics a) What is the peak voltage of the 230 V mains supply?

    3. Physics Support Materials Higher Electricity and Electronics The root mean square voltage produced by a low voltage power supply is 10 V r.m.s. (a) Calculate the peak voltage of the supply.

    4. Physics Support Materials Higher Electricity and Electronics (a) A transformer has a peak output voltage of 12 V. What is the r.m.s. output voltage?

    5. Physics Support Materials Higher Electricity and Electronics The following trace appears on an oscilloscope screen when the time base is set at 2.5 ms cm -1 .

    6. Physics Support Materials Higher Electricity and Electronics An a.c. input of frequency 20 Hz is connected to an oscilloscope with time base set at 0.01 s cm -1 . What would be the wavelength of the waves appearing on the screen?

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