5B) Twenty street lights for a toy model village are to be run in
parallel from the secondary of a transformer. The 1000 turn primary coil is connected to the 120V (rms) 60 Hz AC wall outlet. Each bulb is 12 ohms and designed to operate at 6V (rms).
i) What is the number of turns in the secondary coil of the transformer?
ii) Determine the r.m.s current in the secondary coil.
iii) Determine the r.m.s current in the primary coil
iv) What would be the peak voltage across bulb number 20 (the bulb furthest from the transformer)?
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