CAPE Physics Unit 2 · 2007 (Specimen) · Paper 1 · Question Q19

The ratio of the secondary turns to the primary turns in an ideal transformer is 1 : 30. A 120\text{ V} a.c. supply is connected to the primary coil and a load of 20\ \Omega connected to the secondary coil. What is the secondary current?

1. (A)180\text{ A}
2. (B)6\text{ A}
3. (C)1.5\text{ A}
4. (D)0.2\text{ A}