Electro Magnetic Induction And Alternating Currents Question 217
Question: A capacitor in an LC oscillator has a maximum potential difference of 17 V and a maximum energy of $ 160\mu J $ . When the capacitor has a potential difference of 5V and an energy of $ 10\mu J, $ what is the energy stored in the magnetic field?
Options:
A) $ 10\mu J $
B) $ 150\mu J $
C) $ 160\mu J $
D) $ 170\mu J $
Show Answer
Answer:
Correct Answer: B
Solution:
- $ U_{e}+U_{m}=160\therefore U_{m}=160-U_{e}=160-10 $
$ =150\mu J. $
