Find the charge on the capacitor $C$ in the following circuit ............. $\mu C$
Medium
Download our app for free and get started
At steady state current will not flow in branch that contains capacitator, so $6 \Omega$ and $2 \Omega$ will become in series so net current $\left(\frac{12}{6+2}\right)$ Resistor of $4 \Omega$ will become short circuited $I_{n e t}=\frac{3}{2} A$
Voltage across capacitor = Voltage across $6 \Omega$ $\frac{q}{C}=i R$
$\frac{q}{2 \times 10^{-6}}=\frac{3}{2} \times 6$
$q=18 \times 10^{-6}$
$q=18 \mu C$
Download our app
and get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Two resistors are connected in series across a battery as shown in figure. If a voltmeter of resistance $2000 \,\Omega$ is used to measure the potential difference across $500 \,\Omega$ resister, the reading of the voltmeter will be ............... $V$
Consider a $72\, cm$ long wire $AB$ as shown in the figure. The galvanometer jockey is placed at $P$ on $A B$ at a distance $x cm$ from $A$. The galvanometer shows zero deflection.
The value of $x,$ to the nearest integer, is ..... $cm$
The resistance of platinum wire at $0^{\circ}\,C$ is $2\,\Omega$ and $6.8\,\Omega$ at $80^{\circ} \,C$. The temperature coefficient of resistance of the wire is :
A galvanometer together with an unknown resistance in series is connected to two identical batteries each of $1.5\, V$. When the batteries are connected in series, the galvanometer records a current of $1\,A$, and when batteries are in parallel the current is $0.6\,A$. What is the internal resistance of the battery ?
A battery of $e.m.f.$ $3\, volt$ and internal resistance $1.0\, ohm$ is connected in series with copper voltameter. The current flowing in the circuit is $1.5\, amperes$. The resistance of voltameter will be ........... $ohm$