- 1(current)
Q. No.\(10\) resistors, each of resistance \(R\) are connected in series to a battery of \(E\) and negligible internal resistance. Then those are connected in parallel to the same battery, the current is increased \(n\) times. The value of \(n\) is:
| 1. | \(1000\) | 2. | \(10\) |
| 3. | \(100\) | 4. | \(1\) |
Subtopic: Â Combination of Resistors |
 69%
Level 2: 60%+
NEET - 2023
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A network of resistors is connected across a \(10~\text{V}\) battery with an internal resistance of \(1~\Omega\) as shown in the circuit diagram. The equivalent resistance of the circuit is:
| 1. | \(\dfrac{17}{3}~\Omega\) | 2. | \(\dfrac{14}{3}~\Omega\) |
| 3. | \(\dfrac{12}{7}~\Omega\) | 4. | \(\dfrac{14}{7}~\Omega\) |
Subtopic: Â Combination of Resistors |
 75%
Level 2: 60%+
NEET - 2022
Hints
The equivalent resistance of the infinite network given below is:
| 1. | \(2~\Omega\) | 2. | \((1+\sqrt2)~\Omega\) |
| 3. | \((1+\sqrt3)~\Omega\) | 4. | \((1+\sqrt5)~\Omega\) |
Subtopic: Â Combination of Resistors |
 56%
Level 3: 35%-60%
NEET - 2022
Hints
The effective resistance of a parallel connection that consists of four wires of equal length, equal area of cross-section, and same material is \(0.25~\Omega\). What will be the effective resistance if they are connected in series?
1. \(1~\Omega\)
2. \(4~\Omega\)
3. \(0.25~\Omega\)
4. \(0.5~\Omega\)
Subtopic: Â Combination of Resistors |
 73%
Level 2: 60%+
NEET - 2021
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Links
The equivalent resistance between \(A\) and \(B\) for the mesh shown in the figure is:
| 1. | \(7.2~\Omega\) | 2. | \(16~\Omega\) |
| 3. | \(30~\Omega\) | 4. | \(4.8~\Omega\) |
Subtopic: Â Combination of Resistors |
 88%
Level 1: 80%+
NEET - 2020
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Links
The resistance of a wire is \(R~\Omega\). If it is melted and stretched \(n\) times its original length, its new resistance will be:
| 1. | \(\frac{R}{n}\) | 2. | \(n^{2}R\) |
| 3. | \(\frac{R}{n^{2}}\) | 4. | \(nR\) |
Subtopic: Â Combination of Resistors |
 82%
Level 1: 80%+
NEET - 2017
Hints
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- 1(current)
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