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A pair of adjacent coils has a mutual inductance of 1.5 H. If the current in one coil changes from 0 to 20 A in 0.5 s, change of flux linkage with the other coil is
  • a)
    45 Wb
  • b)
    30 Wb .
  • c)
    40 Wb
  • d)
    35 Wb
Correct answer is option 'B'. Can you explain this answer?
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A pair of adjacent coils has a mutual inductance of 1.5 H. If the curr...
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A pair of adjacent coils has a mutual inductance of 1.5 H. If the curr...
Given information:
- Mutual inductance between a pair of adjacent coils: 1.5 H
- Current in one coil changes from 0 to 20 A in 0.5 s

To find:
Change of flux linkage with the other coil

Solution:
The change in flux linkage with the other coil can be calculated using the formula:

ΔΦ = M * ΔI / Δt

Where:
- ΔΦ is the change in flux linkage
- M is the mutual inductance between the coils
- ΔI is the change in current in one coil
- Δt is the time taken for the change in current

Given:
- M = 1.5 H
- ΔI = 20 A - 0 A = 20 A
- Δt = 0.5 s

Substituting the given values into the formula:

ΔΦ = 1.5 H * (20 A) / (0.5 s)
= 30 Wb

Therefore, the change of flux linkage with the other coil is 30 Wb.

Answer:
Option B) 30 Wb
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A pair of adjacent coils has a mutual inductance of 1.5 H. If the current in one coil changes from 0 to 20 A in 0.5 s, change of flux linkage with the other coil isa)45 Wbb)30 Wb .c)40 Wbd)35 WbCorrect answer is option 'B'. Can you explain this answer?
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