Current Electricity Charging Discharging Of Capacitors Question 727
Question: In the circuit shown, current (in A) through 50 V and 30 V batteries are, respectively.
Options:
A) 2.5 and 3
B) 3.5 and 2
C) 4.5 and 1
D) 3 and 2.5
Show Answer
Answer:
Correct Answer: C
Solution:
Let the current flowing in the circuit as shown in the diagram.
From the circuit we have,50=20 $i_1$
$i_1$=2.5 A
Also,30=10 (i−$i_1$+i′)3=i−2.5+i′i+i′=5.5
Further, using Kirchhoff’s voltage law in the loop DABCD
we get :20$i_1$−5(i−$i_1$)−10(i−$i_1$+i′)−5(i−$i_1$)=0
20×2.5−10(i−$i_1$)−30=0
50−30=10(i−2.5)i=4.5 A
and,i+i′=5.5
i′=1 A
BETA
