A capacitor of capacity 10μF is charged to 40V and a second capacitor of capacity 15μF is charged to 30V. If the capacitors are connected in parallel, the amount of charge that flows from the smaller capacitor to higher capacitor in μC is:
200
30
60
250
A
30
B
60
C
200
D
250
Open in App
Solution
Verified by Toppr
Initially, the charge of first capacitance, Q1=C1V1=10×40=400μC and the charge of second one, Q2=C2V2=15×30=450μC
When the capacitors are connected in parallel, potential across them will be same. Thus, the common potential, V=Q1+Q1C1+C2=400+45010+15=34V
Now charges on capacitors are Q′1=C1V=10×34=340μC and Q′2=C2V=15×34=510μC
Charge flow =510−450=60μC
Was this answer helpful?
2
Similar Questions
Q1
A capacitor of capacity 10μF is charged to 40V and a second capacitor of capacity 15μF is charged to 30V. If the capacitors are connected in parallel, the amount of charge that flows from the smaller capacitor to higher capacitor in μC is:
View Solution
Q2
A capacitor of capacity C is charged to a potential difference V and another capacitor of capacity 2C is charged to a potential difference 4V. The charging batteries are disconnected and the two capacitors are connected with reverse polarity (i.e., positive plate of first capacitor is connected to negative plate of second capacitor). The heat produced during the redistribution of charge between the capacitors will be :
View Solution
Q3
Two capacitors of 2μF and 3μF are charged to 150V and 120V respectively. The plates of capacitor are connected as shown in the figure. An uncharged capacitor of capacity 1.5μF is connected to the free end of the wires as shown. Then:
View Solution
Q4
A capacitor of capacity 2μF is charged to 100V. What is the heat generated when this capacitor is connected in parallel to an another capacitor of same capacity?
View Solution
Q5
Three capacitors 3μF,10μF and 15μFare connected in series to a voltage source of 100V. The charge on 15μFis :