Electronics and Communication Engineering - Networks Analysis and Synthesis - Discussion
Discussion Forum : Networks Analysis and Synthesis - Section 2 (Q.No. 30)
30.
Two similar coupled coils are connected in series. The total inductance in series aiding connection is 100 mH. If currents is 3 A, the energy stored in magnetic field is
Answer: Option
Explanation:
Energy = 0.5 LI2.
Discussion:
6 comments Page 1 of 1.
Parashu kn said:
8 years ago
0.5*100*100^-3*3^2 = 0.45J
2 similar coupled coil energy is 0.45j.
1 single coil energy 0.45j/2=0.225j.
So answer is B.
2 similar coupled coil energy is 0.45j.
1 single coil energy 0.45j/2=0.225j.
So answer is B.
(1)
NARENDRA KUMAR said:
8 years ago
Yes, I agree, thanks @Abhishek.
G Abhishek said:
9 years ago
Guys, it's a couple of coils connected in series... that means a couple of resistors with a couple of inductors.
So the energy stored in the magnetic field must be less than 0.45 joules.
So the answer is 0.225 joule.
So the energy stored in the magnetic field must be less than 0.45 joules.
So the answer is 0.225 joule.
Shahid khattak said:
9 years ago
Correct Answer is option is B.
Lohith said:
9 years ago
Yes, I will agree with your answer.
Vinaya said:
1 decade ago
Not clear answer is option B right? 0.5*100*100^-3*3^2 = 0.45J.
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