A transformer has 5500 turns in the primary coil and 500 turns in the secondary coil. The secondary coil delivers $110\ \text{V}$ a.c. and is linked to a heater. The transformer is $100\%$ efficient. The heater has a power output of $132\ \text{W}$. What current flows in the primary coil?
- A$0.11\ \text{A}$
- B$0.12\ \text{A}$
- C$11\ \text{A}$
- D$12\ \text{A}$