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1)How to calculate rate of change of induced emf at different time instant when inductance, resistance, emf of battery is given.(if u will ask i will post the complete ques) 2)A coil of resistance 300 ohms and inductance 1 henry is connected across a voltage source of freq 300/2pie hertz. Calculate the phase differnce b/w voltage and current in circuit. Rates assured. Reply sooooon.


1)How to calculate rate of change of induced emf at different time instant when inductance, resistance, emf of battery is given.(if u will ask i will post the complete ques)
 
2)A coil of resistance 300 ohms and inductance 1 henry is connected across a voltage source of freq 300/2pie hertz. Calculate the phase differnce b/w voltage and current in circuit.
 
Rates assured. Reply sooooon.


Grade:11

1 Answers

ROSHAN MUJEEB
askIITians Faculty 833 Points
3 years ago
1)please post complete question for more clarity
2)
Solution :
XL=2πfL=2π×3002π×1=300Ω,R=300ΩXL=2πfL=2π×3002π×1=300Ω,R=300Ω
tanϕ=XLR=1⇒ϕ=π4tanϕ=XLR=1⇒ϕ=π4(lagging)

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