Question 427Electricity/Electronics - QMED70% to pass
In the circuit 'B' of the illustration, what would be the result of the upper heating element being burned out and open circuited? Illustration EL-0041
AI Explanation
The correct answer is A) Low heat (series) position would result in no heat at all. Medium heat (single) position would result in no heat at all. High heat (parallel) position would result in medium heat.
This is correct because if the upper heating element in circuit 'B' is burned out and open circuited, it would break the series connection in the low heat position, resulting in no heat at all. Similarly, the single upper element would be open circuited in the medium heat position, again resulting in no heat. However, in the high heat (parallel) position, the lower heating element would still be functional, resulting in medium heat output.
The other options are incorrect because they do not accurately describe the behavior of the circuit when the upper heating element is open circuited.
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