Kirchhoff's Voltage Law

Q. In the given circuit, if the galvanometer shows zero reading, then
x= ___ ohms

1. 30
2. 50
3. 100
4. 20

Q. A combination of secondary cells has an equivalent EMF of 2 V, internal resistance of 400 $\Omega$. Maximum current that can be drawn is.

1. 0.005 A
2. 0.0005 A
3. 0.010 A
4. 0.010 A

Q. A battery of EMF 5 V and internal resistance $0.2\Omega$ is being charged with a current of 10 A. The potential difference between A and B shown in figure is.

1. 7V
2. 5V
3. 10V
4. 3V

Q. Heat generated in the given circuit will be maximum when r is

1. $2\Omega$
2. $4\Omega$
3. $\frac{22}{7}\Omega$
4. $\frac{30}{7}\Omega$

Q. If deflection of galvanometer is zero, then value of E is

Q. In the given circuit potential of junction P is

1. 3.2 V
2. 2.8 V
3. 4 V
4. 0 V

Q. If $24$ cells each of internal resistance $I$ $\Omega$ are to be connected in series and parallel combination to get the maximum power output across a load of $10$ $\Omega$. If $x$ represents the number of rows and $y$ represents the number of cells in each row. Which of the following relation between $x$ and $y$ is correct?

1. $y-x=23$
2. $y-x=10$
3. $y-x=23$
4. $y-x=5$

Q. A part of the circuit as shown in the figure. All the capacitors have capacitance of $2\mu F$, then charge on

1. capacitor $C_1$ is zero
2. capacitor $C_2$ is zero
3. capacitor $C_3$ is zero
4. any capacitor cannot be determined

Q. Both capacitors are initially uncharged and then connected as shown and switch is closed. What is the potential difference across the $3\mu F$ capacitor?

1. $30\text{V}$
2. $10\text{V}$
3. $25\text{V}$
4. None of these

Q. In the circuit shown in figure, $R_1=R_2=R_3=10\Omega$. Find the currents through $R_1$ and $R_2$.

1. $0\text{A},1\text{A}$
2. $1\text{A},0\text{A}$
3. $1.5\text{A},1.5\text{A}$
4. $5\text{A},5\text{A}$