XII Physics Solved Numericals | Ch# 19 Electromagnetic Induction

1. Two coils are placed adjacent to each other, and a change in current in the first coil induces an emf of 0.5 V in the second coil. If the mutual inductance is 0.2 H, calculate the rate of change of current in the first coil.
2. A coil with an inductance of 0.5 H experiences a rate of change of current of 2 A/s. Calculate the induced EMF in the coil.
3. Two coils are placed close to each other. If a change in current of 3 A/s in the first coil induces an EMF of 4 V in the second coil, calculate the mutual inductance.
4. A transformer has 200 turns in the primary coil and 400 turns in the secondary coil. If the primary voltage is 120 V, calculate the secondary voltage for a step-up transformer.
5. An inductor with an inductance of 0.02H has a current flowing through it of 2 A. Calculate the energy stored in the inductor.
6. A coil stores energy in form of electric potential energy of 0.2J when it carries a current of 2A. Calculate the inductance of coil.
7. An AC generator produces an alternating current with a maximum voltage of 240 V. If the frequency of the generated AC is 50 Hz, calculate the peak value of the voltage.
8. A transformer has 1000 turns in its primary coil and 200 turns in its secondary coil. If the primary voltage is 120 V, calculate the secondary voltage for a step-down transformer.
9. A conductor of length 0.4 m moves at a velocity of 5 m/s perpendicular to a magnetic field of 0.3 T. Calculate the motional EMF induced in the conductor.

[raufalmani]

Salam Sir
First of All i want to tell that you are the best teacher ever sir ❤️


Then
Kindly upload NEW CHAPTER lecture *AC CIRCUIT* kindly..
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[inspirationforlife]

Thank you sir.❤ bus sir daily video upload Karty ra hy

[RamshaAqeel-nu]

A bundle of thanks sir ❤❤
Please expain worked example

[SheezaRajput-sf]

Next chapter ki video nhi mil Rahi mujhy numericals ki....

[Kirshandasanandani]

Sir new chamister sindh book ka bhi lachar uplode krona plzzzz😮😢 Sir

[Itx_Abrar_yt]

Sir examples ke numericals b smjhaya kren plz❤

[pakistaniactressbeauty]

Jazakallah thanks sir . Sir mcqs main bohat mushkil horahi hai, bckz ka paper hota hain tou mcqs main kaisa formula use karain kindly batain.

Aik aur bat sir formulas ko numericals main kaisa but karan especially toroid, solenoid and ammeter Vollmeter main😭
Normal numericalshojata
Hain but difficult nhi hopata

[muhammadRizwan-vrqj]

Mashallah sir jaldi upload kara lecture book ki theory samaj ni a rahi i m in solid state of electronics

[animals-behave]

sir class 12 ka chapter 20 bhe upload karo jalde sindh board