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
- decrease
- increase
- remain unaffected
- fluctuate
Answer:
(ii) increase
Physics CBSE Class 12 Sample Paper for 2023 Boards - Solution
Question 2 Important
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Question 4
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Question 6 Important
Question 7 You are here
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Question 15 Important
Question 16 [Assertion Reasoning]
Question 17 [Assertion Reasoning] Important
Question 18 [Assertion Reasoning] Important
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Question 20
Question 21 (Choice 1) Important
Question 21 (Choice 2)
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Question 23 (Choice 1) Important
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Question 30
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Question 32 (Choice 1) Important
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Question 33 (Choice 1) Important
Question 33 (Choice 2) Important
Question 34 (i) [Case Based]
Question 34 (ii) [Case Based] Important
Question 34 (iii) - Choice 1 [Case Based]
Question 34 (iii) - Choice 2 [Case Based]
Question 35 (i) [Case Based] Important
Question 35 (ii) [Case Based]
Question 35 (iii) - Choice 1 [Case Based]
Question 35 (iii) - Choice 2 [Case Based] Important
Physics CBSE Class 12 Sample Paper for 2023 Boards - Solution
Last updated at April 16, 2024 by Teachoo
Answer:
(ii) increase