- 1(current)
Q. No.
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All the cells, shown in the figure below, are of \(2~\text V,\) and all the resistances are \(1~\Omega.\) When a potential difference \(V\) is applied between \(A\) and \(B,\) the current through the circuit doubles compared to the situation when the potential difference is made zero. Then;
| 1. | \(V=2\) volts, positive at \(A.\) |
| 2. | \(V=2\) volts, negative at \(A.\) |
| 3. | \(V=6\) volts, positive at \(A.\) |
| 4. | \(V=6\) volts, negative at \(A.\) |
Subtopic: Â Kirchoff's Voltage Law |
Level 3: 35%-60%
Hints
The potential difference between the ends of a \(12~\text{V}\) battery when it is being charged by a \(2~\text{A}\) charger is found to be \(13.2~\text{V}\). If this battery is connected in a circuit with a \(6~\Omega\) resistance, the current will be nearly:
| 1. | \(2~\text{A}\) | 2. | \(1~\text{A}\) |
| 3. | \(1.8~\text{A}\) | 4. | \(2.2~\text{A}\) |
Subtopic: Â Kirchoff's Voltage Law |
 53%
Level 3: 35%-60%
Hints
The resistance between \(A,B\) is found to be \(500~\Omega\) while that between \(A,C\) is \(400~\Omega.\) The minimum possible value of \(R_2\) is:
1. \(100~\Omega\)
2. \(200~\Omega\)
3. \(400~\Omega\)
4. \(900~\Omega\)
1. \(100~\Omega\)
2. \(200~\Omega\)
3. \(400~\Omega\)
4. \(900~\Omega\)
Subtopic: Â Kirchoff's Voltage Law |
 54%
Level 3: 35%-60%
Hints
In the circuit shown, the current in \(5~\Omega\) resistor is:
| 1. | \(1.5\text{ A}\) from \(Q\) to \(P\) |
| 2. | \(1.5\text{ A}\) from \(P\) to \(Q\) |
| 3. | \(3\text{ A}\) from \(P\) to \(Q\) |
| 4. | No current flows from \(Q\) to \(P\) |
Subtopic: Â Kirchoff's Voltage Law |
 70%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
What is the current flowing through the rightmost \(2~\Omega\) resistor in the given circuit?
| 1. | \(1~\text{A}\) | 2. | \(2~\text{A}\) |
| 3. | \(0.5 ~\text{A}\) | 4. | \(0.25~\text{A}\) |
Subtopic: Â Kirchoff's Voltage Law |
 57%
Level 3: 35%-60%
Hints
- 1(current)
Q. No.
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