Electro Magnetic Induction And Alternating Currents Question 347
Question: The network is a part of a complete circuit. If at a certain instant the current i is 5 A and is decreasing at the rate of $ 10^{3}A/s $ then $ V_{A}-V_{B} $ is
Options:
A) 5 V
B) 10 V
C) 15 V
D) 20 V
Show Answer
Answer:
Correct Answer: C
Solution:
By using Kirchoff’s voltage law $ V_{A}-i\ R+E-L\frac{di}{dt}=V_{B}\Rightarrow V_{B}-V_{A}=15\ volt. $
