Note AcademyNote Academy
Start

Physics · Oct / Nov 2020 · Paper 12 · Question 36

5054The transformer

A transformer has 4800 turns on its primary coil and 480 turns on its secondary coil. The primary coil is connected to a 240 V a.c. supply. The secondary coil is connected to a lamp. How does the output current in the lamp compare with the input current?

  1. Ahigher frequency a.c.
  2. Blower frequency a.c.
  3. Ccurrent in one direction only
  4. Dthe same frequency a.c.

As printed in the paper

Show the answer

Correct answer: D. the same frequency a.c.

Sit this whole paper →More on The transformer

Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.