Check sibling questions

An iron cored coil is connected in series with an electric bulb with an AC source as shown in figure. When iron piece is taken out of the coil, the brightness of the bulb will

  1. decrease
  2. increase
  3. remain unaffected
  4. fluctuate

 

Answer:

(ii) increase

  1. Physics Class 12
  2. Solutions to CBSE Sample Paper - Physics Class 12

About the Author

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo