Electromagnetic Induction questions
610 published questions with worked solutions.
- Alternating emf given by V=V_0 t has peak value 10 V and frequency 50 Hz. The instantaneous emf at t=1/600 seconds is:
- A circuit of negligible resistance has an inductance of 10 mH and a capacitance of 0.1 . The resonant frequency of the circuit is...
- An A.C. voltage of r.m.s. value 2 V is applied to a parallel combination of L and C in which L = 2 mH and C = 3.2 . The current...
- At what frequency the inductive reactance of 2H inductance will be equal to the capacitive reactance of 2 capacitance?
- The frequency at which 9.0 mH inductor and 10 capacitor will have same reactance is
- The resonant frequency is f. if the capacitance is made 4 times the initial value, the resonant frequency will become
- The magnetic field is doubled through a coil of number of turns n, then the induced emf will be:
- A straight conductor of length 4m moves at a speed of 10m/sec when the conductor makes an angle of 30^ with the direction of...
- A coil of area 500 cm^2 having 100 turns is kept perpendicular to magnetic field of intensity 4 10^ -5 T. If it is rotated by...
- A metal rod of length 1m is rotated about its ends in a plane at right angle to uniform magnetic field of induction 5 10^ -3 T.If...
- A coil of copper having 1000 turns is placed in a magnetic field (B=4 10^ -4 T)perpendicular to its axis. The cross-sectional...
- An L.C. circuit contains 10 mH inductor and a 2.5 capacitor the resistance of the circuit is negligible. The energy stored in the...
- An infinitely long cylindrical wire is kept parallel to a uniform magnetic field B directed along positive z axis. The direction...
- A magnet is suspended lengthwise from a spring while it oscillates, the magnet moves in and out of the coil C connected to a...
- Three identical rings move with the same speed on a horizontal surface in a uniform horizontal magnetic field normal to the...
- Which of the following represents correct formula for magnetic flux?
- A rectangular loop of area 0.2 m^2 is lying in a magnetic field of 5 10^ -2 tesla at an angle of 60^ with the magnetic field. The...
- SI unit of magnetic flux is
- The dimensional formula of magnetic flux is
- Magnetic flux is
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration