In the circuit shown, the current in the \(1~\Omega\) resistor is:
         

In the circuit shown, three \(1~\Omega\) resistors are connected vertically between the upper and lower conductors. Each section of both the upper and lower conductors contains an ideal \(2~\text{V}\) source, all orientated in the same direction. The left ends of the two conductors are directly connected.

What is the current through each of the \(1~\Omega\) resistor?

In the circuit shown below, the component values are \(R_1=1~ \Omega,\) \(R_2=2~ \Omega,\) \(E_1=2~\text{V},\) \(E_2=4~\text{V},\) and \(E_3=4~\text{V}.\) What is the approximate potential difference between points \(a\) and \(b\)?
       

1. \(3.7\) V
2. \(2.7\) V
3. \(2.3\) V
4. \(3.3\) V

An ideal cell of emf \(10~\text{V}\) is connected in circuit shown in figure. Each resistance is \(2~\Omega\). The potential difference (in \(V\)) across the capacitor when it is fully charged is:

   
1. \(2\)
2. \(4\)
3. \(6\)
4. \(8\)

Two resistors \(400~ \Omega\) and \(800~ \Omega\) are connected in series across a \(6~\text{V}\) battery. The potential difference measured by a voltmeter of \(10~ \text{k}\Omega\) across \(400~ \Omega\) resistor is close to:
1. \(2.05~\text{V}\)
2. \(1.95~\text{V}\)
3. \(2~\text{V}\)
4. \(1.8~\text{V}\)

Four resistances \(40 ~\Omega, 60 ~\Omega, 90 ~\Omega \text { and } 110 ~\Omega\) make the arms of a quadrilateral \(ABCD\). Across \(AC\) is a battery of emf \(40~\text{V}\) and internal resistance negligible. The potential difference across \(BD\) in \(V\) is:

 
1. \(4\)
2. \(3\)
3. \(2\)
4. \(1\)

In the circuit, given in the figure currents in different branches and value of one resistor are shown. Then potential at point \(B\) with respect to the point \(A\) is:

 
1. \(+1 ~\mathrm{V}\)
2. \(-1 ~\mathrm{V}\)
3. \(-2 ~\mathrm{V}\)
4. \(+2 ~\mathrm{V}\)

In the figure shown, the current in the \(10~\text{V}\) battery is close to: