For a given voltage, four heating coils will produce minimum heat when

1.	For a given voltage, four heating coils will produce minimum heat when connected
A.	all in parallel
B.	all in series
C.	with two parallel pairs in series
D.	one pair in parallel with the other two in series
Answer» C. with two parallel pairs in series

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For a given voltage, four heating coils will produce minimum heat when connected

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