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When 30V dc is applied to the vertical deflection plates of CRO, the bright spot moves 1cm away from the center if 30V (rms) is applied then the picture on screen
  • a)
    Two bright spots nearly 2cm away
  • b)
    A straight linearly 3cm long
  • c)
    A straight linearly 2cm long
  • d)
    Two bright spot nearly 3cm away
Correct answer is option 'B'. Can you explain this answer?
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When 30V dc is applied to the vertical deflection plates of CRO, the b...
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Answer:

The given question is related to the Cathode Ray Oscilloscope (CRO). When the 30V DC is applied to the vertical deflection plates of CRO, the bright spot moves 1 cm away from the center. So, let's understand the given options and try to find the correct answer.

Option 'A': Two bright spots nearly 2 cm away from each other. This option is incorrect because the given question doesn't mention anything about two bright spots.

Option 'B': A straight linearly 3 cm long. This option is correct because when 30V (rms) is applied to the vertical deflection plates of CRO, the bright spot moves 1 cm away from the center. So, if the voltage is increased to 30V (rms), then the bright spot will move 3 cm away from the center in a straight line.

Option 'C': A straight linearly 2 cm long. This option is incorrect because the given voltage (30V rms) is not sufficient to move the bright spot 2 cm away from the center.

Option 'D': Two bright spots nearly 3 cm away from each other. This option is incorrect because the given question doesn't mention anything about two bright spots.

Therefore, option 'B' is the correct answer.

Conclusion:

When 30V (rms) is applied to the vertical deflection plates of CRO, the bright spot moves 3 cm away from the center in a straight line.
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When 30V dc is applied to the vertical deflection plates of CRO, the bright spot moves 1cm away from the center if 30V (rms) is applied then the picture on screena)Two bright spots nearly 2cm awayb)A straight linearly 3cm longc)A straight linearly 2cm longd)Two bright spot nearly 3cm awayCorrect answer is option 'B'. Can you explain this answer?
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