9
QuizMultiple Choice

Applications of Electromagnetism — Quiz

Question 9 • Physical Science

Helen adjusts the armature of an electric generator by increasing the number of coils around the iron core. What is Helen most likely trying to do?

Answer
A
decrease the amount of current
B
increase the amount of current
C
reverse the direction of the current flow
D
maintain the direction of the current flow

Explanation

Adding more coils to the armature increases the voltage induced when the generator turns. With the circuit resistance unchanged, greater voltage produces more current. So Helen is most likely trying to increase the amount of current.

AI-written and checked against the verified answer.

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