An ideal transformer has 550 turns on the primary and 30 turns on the secondary. What is the maximum output p.d if the maximum input voltage is 3,300…

Question

An ideal transformer has 550 turns on the primary and 30 turns on the secondary. What is the maximum output p.d if the maximum input voltage is 3,300 V? And what maximum primary current is required if a maximum current of 11 A is drawn from the secondary? Assuming the transformers is 100% efficient.

Answer 1

An ideal transformer has 550 turns on the primary and 30 turns on the secondary. What is the maximum output p.d if the maximum input voltage is 3,300 V? And what maximum primary current is required if a maximum current of 11 A is drawn from the secondary? Assuming the transformers is 100% efficient.

5.56 V, 1.67 A
180 V, 0.6 A ✓
94 V, 4.2 A
116 V, 2 A

Explanation

West African nationalism grew after WWII. Factors: returning soldiers experienced equality abroad, Atlantic Charter promised self-determination, education created African elite, economic grievances accumulated.

Methods: newspapers (educated opinion), political parties (mass mobilization), constitutional negotiations, occasional boycotts and protests. Most West African independence was negotiated, not fought.

Ghana led (1957), followed by Nigeria (1960), Sierra Leone (1961), others. New nations faced challenges: artificial borders, ethnic diversity, economic dependence, weak institutions. Independence was beginning, not end.

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