An electric doorbell requires 12 volts to operate correctly. A transformer nicely allows it to be powered from a 120-volt outlet. If the primary has 500 turns, show that the secondary should have 50 turns.
To show: there are
Answer to Problem 52A
The number of turns on secondary coil is
Explanation of Solution
Given:
Voltage of electric doorbell
Transformer voltage
Number of turns on primary coil
Number of turns on secondary coil
Formula used:
Calculation:
The relation between voltage and number on turns on primary and secondary winding is,
The equation becomes,
The number of turns required on the secondary winding is
Conclusion: The number of turns on the secondary winding is
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