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In a coil of resistance 100 , a current is induced by changing

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In a coil of resistance $100Ω$ , a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is

225 Wb

250 Wb

275 Wb

200 Wb

Views: 5,218 students

Updated on: Dec 9, 2023

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2017

Found 3 tutors discussing this question

Oliver Discussed

In a coil of resistance

100Ω

, a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is

12 mins ago

Discuss this question LIVE

12 mins ago

Text solutionVerified

Exp. (b)
Induced constant,

I = \frac{e}{R}

Here,

e =

induced emf

= \frac{d ϕ}{d t}

I = \frac{I}{R} = (\frac{d ϕ}{d t}) \cdot \frac{1}{R}

d ϕ = I R d t

ϕ = \int I R d t

∴

Here,

R

is constant

∴ ϕ = R \int I d t

\int I \cdot d t =

Area under

I - t

graph

= \frac{1}{2} \times 10 \times 0.5 = 2.5

∴ ϕ = R \times 2.5 = 100 \times 2.5 = 250 Wb

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Question Text	In a coil of resistance $100Ω$ , a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is
Updated On	Dec 9, 2023
Topic	Magnetism and Matter
Subject	Physics
Class	Class 12
Answer Type	Text solution:1 Video solution: 9
Upvotes	871
Avg. Video Duration	8 min

In a coil of resistance $100Ω$ , a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is

Text solutionVerified

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In a coil of resistance $100Ω$ , a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is