Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JIPMER 2010
Exam
JIPMER
Year
2010
Subject
Physics
Chapter
Electromagnetic Induction

JIPMER 2010 · Physics · Electromagnetic Induction

In 0.1 s , the current in a coil increases from 1 A to 1.5A. If...

In 0.1 s , the current in a coil increases from 1 A to 1.5A. If inductance of coil is 60 mH , then induced current in external resistance of 3Ω3 \Omega will be

Options

  1. A1A
  2. B0.5A
  3. C0.2A
  4. D0.1A

Correct answer

D. 0.1A

Step-by-step solution

Induced emf, ∣e∣=Ldidt=(60×10−3)×(1.5−1)0.1=60×10−3×0.50.1=0.3 V\begin{aligned} |e|=L \frac{d i}{d t} & =\left(60 \times 10^{-3}\right) \times \frac{(1.5-1)}{0.1} \\ & =\frac{60 \times 10^{-3} \times 0.5}{0.1}=0.3 \mathrm{~V} \end{aligned} Induced current, i=eR=0.33=0.1 Ai=\frac{e}{R}=\frac{0.3}{3}=0.1 \mathrm{~A}
Practice Electromagnetic Induction on Quantrex Academy →

More from Electromagnetic Induction

A square loop of area A is moving out of the uniform magnetic field (B) with constant… MHT CET Medical 2026The value of mutual inductance of two coils is 6 mH. The current in one of the coil… MHT CET Medical 2026Two identical inductors are connected in parallel. If the parallel combination stores 40\… MHT CET Medical 2026Two coils have mutual inductance of 0.004\ H . The current changes in the first coil… MHT CET Medical 2026The coefficient of coupling is 0.8 . If the mutual inductance is 8\ H , then the values… MHT CET Medical 2026The self inductance L of a solenoid of length l and area of cross-section A, with a fixed… MHT CET Medical 2026A wire of length 1\ m is moving at a speed of 2\ m/s perpendicular to its length in a… MHT CET Medical 2026Semicircular wire of radius R is rotated in a uniform magnetic field about an axis… MHT CET Medical 2026 Full Electromagnetic Induction list All JIPMER PYQs