Question

A circuit when connected to an $AC$ source of $12\, V$ gives a current of $0.2\, A$. The same circuit when connected to a $DC$ source of $12\, V$, gives a current of $0.4 \,A$. The circuit is

• A. series LR
• B. series RC
• C. series LC
• D. series LCR

Answer 1

Answer: (A)

series LR

Answer 2

$Z = \frac{12}{0.2} 60\, \Omega$ and $R = \frac{12}{0.4} = 30\,\Omega$