A coil of N turns is placed in a magnetic field B→ such that B→ is perpendicular to the plane of the coil. B→ changes with time as B = B₀ cos(2π/T t) where T is time period. The magnitude of emf induced in the coil will be maximum at

Faraday's Laws of Electromagnetic Induction | PadhAiPro

Question

MCQ (Single)Faraday's Laws of Electromagnetic InductionCBSE PYQ

Similar Questions

A 100-turn coil of radius 1·6 cm and resistance 5·0 Ω is co-axial with a solenoid of 250 turns/cm and radius 1·8 cm. The solenoid current drops from 1·5 A to zero in 25 ms. Calculate the current induced in the coil in this duration. (Take π² = 10)

TextFaraday's Laws of Electromagnetic InductionInduced EMF and Induced CurrentMutual Inductance Between Two Coils

What is meant by current sensitivity of a galvanometer ? Mention the factors on which it depends.

TextCurrent Sensitivity of GalvanometerConversion of Galvanometer to VoltmeterFaraday's Laws of Electromagnetic InductionMutual Inductance Between Two Coils

A galvanometer of resistance G is converted into a voltmeter of range (0 − V) by using a resistance R. Find the resistance, in terms of R and G, required to convert it into a voltmeter of range (0 − V/2).

TextCurrent Sensitivity of GalvanometerConversion of Galvanometer to VoltmeterFaraday's Laws of Electromagnetic InductionMutual Inductance Between Two Coils

The magnetic flux through a coil of resistance 5 Ω increases with time as : φ = (2.0 t³ + 5.0 t² + 6.0 t) mWb Find the magnitude of induced current through the coil at t = 2 s.

TextCurrent Sensitivity of GalvanometerConversion of Galvanometer to VoltmeterFaraday's Laws of Electromagnetic InductionMutual Inductance Between Two Coils

A rectangular coil of N turns and area of cross-section A is rotated at a steady angular speed ω in a uniform magnetic field. Obtain an expression for the emf induced in the coil at any instant of time.

TextCurrent Sensitivity of GalvanometerConversion of Galvanometer to VoltmeterFaraday's Laws of Electromagnetic InductionMutual Inductance Between Two Coils

Two coplanar and concentric circular loops L₁ and L₂ are placed coaxially with their centres coinciding. The radii of L₁ and L₂ are 1 cm and 100 cm respectively. Calculate the mutual inductance of the loops. (Take π² = 10)

TextCurrent Sensitivity of GalvanometerConversion of Galvanometer to VoltmeterFaraday's Laws of Electromagnetic InductionMutual Inductance Between Two Coils