Physics · AC generator and transformer
Which of the following statement regarding transformer is incorrect?
Which of the following statement regarding transformer is incorrect?
- A. A transformer makes use of Faradays Law.
- B. The ferromagnetic properties of an iron core is used by it to efficiently raise or lower AC voltage
- C. It cannot increase power so that if the voltage is raised, the current is proportionally lowered and vice versa.
- D. The current induced in primary circuit is of same nature as in secondary circuit with differences in amplitude only.
Step-by-step solution
In a transformer, the primary circuit is connected to the AC source and carries the input current, not an induced current. The induced current is only in the secondary circuit due to mutual induction. Option D incorrectly states that current is induced in the primary circuit, making it the wrong statement.
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