Скачать или смотреть Numerical Problems I CH # 14 Electromagnetic Induction I 2nd Year Federal,KPK Board 2021 Edition

Assalamualikum Dear students in this video we are going to discuss Numerical Problems of CH # 14 Electromagnetic Induction.
Whenever the magnetic flux through the conductor is changing an emf is induced in the coil this phenomenon is called Electromagnetic Induction.
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#A wheel with 12 metal spokes each 0.6m long is rotated with a speed of 180rpm in a plane normal to the Earth’s magnetic field at a place. If the magnitude of the field is 0.6G, what is the magnitude of induced Emf between the axle and rim of the wheel?
#A circuit has 1000 turns enclosing a magnetic circuit 20 cm2 in section with 4A current, the flux density is 1wbm-2 and with 9A current, it is 1.4wbm-2. Find the mean value off the inductance between these limits and the induced Emf od the current falls from 9A to 4A in 0.05s.
#A coil of resistance 100Ω is placed in a magnetic field of 1mWb. The coil has 100 turns and galvanometer of 400 Ω resistance is connected in series with it. Find the average Emf and the current of the coil is moved in 1/10th from the given field to a field of 0.2mWb.
#A horizontal straight wire 10m long extending from east to west is falling with a speed of 5.0m/s, at right angle of the horizontal component of the earth’s magnetic field 0.30x10-4Wbm-2. (a) What is the instantaneous value of the emf induced on the wire?(b) What is the direction of the Emf (C) Which end of the wire is at the higher electrical potential?
#Current in a circuit falls from 5A to 0A in 0.1s. If the average Emf of 200V is induced, give an estimate of the self- Inductance of the circuit.
#A long solenoid with 15 turns per cm has a small loop of area 2.0cm2 placed inside the solenoid normal to its axis. If the current carried by the solenoid changes steadily from 2.0A to 4.0A in 0.1s, what is the induced Emf in the loop while the current is changing?
#A rectangular loop of sides 8am and 2cm with a small cut is moving out of a region of uniform magnetic field of magnitude 0.3T directed normal to the loop. What is the Emf developed across the cut if the velocity of the loop is 1cm/s in a direction normal to the (a) Longer Side, (b) Shorrter side of the loop? For how long does the induced voltage last in each case?
#A 90mm length of wire moves with an upward velocity of 35m/s between the poles of a magnet. The magnet field is 80mT directed to the right. If the resistance in the wire is 5mΩ, what are the magnitude and direction of the induced current?
#A pair of adjacent coils has a mutual inductance of 1.5H. If the current in one coil changes from 0 to 20A in 0.5s, what is the change of flux linkage with the other coil?