Physics Class 12
Solutions to CBSE Sample Paper - Physics Class 12

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

Question 7 - An iron cored coil is connected  - teachoo.jpg

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



(ii) increase

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.