Q. No.Arrange the following in the order of their resistance.
Choose the correct answer from the options given below:
| A. | (\(0\) to \(1~\text A\)) ranged ammeter. |
| B. | (\(0\) to \(100~\text {mA}\)) ranged milli-ammeter. |
| C. | (\(0\) to \(500~\mu\text A\)) ranged micro-ammeter. |
| D. | (\(0\) to \(100~\text V\)) ranged voltmeter. |
Choose the correct answer from the options given below:
| 1. | A > B > C > D | 2. | D > C > B > A |
| 3. | D > A > B > C | 4. | C > B > A > D |
Subtopic: Derivation of Ohm's Law |
55%
From NCERT
NEET - 2024
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In an electrical circuit, the voltage is measured as \({V}=(200\pm4)\) volts and the current is measured as \({I}=(20\pm0.2)~\text A.\) The value of the resistance is:
1. \((10\pm4.2)~\Omega \)
2. \((10\pm0.3)~\Omega \)
3. \((10\pm0.1)~\Omega \)
4. \((10\pm0.8)~\Omega \)
1. \((10\pm4.2)~\Omega \)
2. \((10\pm0.3)~\Omega \)
3. \((10\pm0.1)~\Omega \)
4. \((10\pm0.8)~\Omega \)
Subtopic: Derivation of Ohm's Law |
From NCERT
NEET - 2024
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The steady-state current in the circuit shown below is:
1. \(0.67~\text A\)
2. \(1.5~\text A\)
3. \(2~\text A\)
4. \(1~\text A\)
1. \(0.67~\text A\)
2. \(1.5~\text A\)
3. \(2~\text A\)
4. \(1~\text A\)
Subtopic: Derivation of Ohm's Law |
68%
From NCERT
NEET - 2024
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A uniform wire of resistance \(50~\Omega\) \(\) is cut into \(5\) equal parts. These parts are now connected in parallel. The equivalent resistance of the combination is:
| 1. | \(2~\Omega\) \(\) | 2. | \(10~\Omega\) \(\) |
| 3. | \(250~\Omega\) \(\) | 4. | \(6250~\Omega\) |
Subtopic: Derivation of Ohm's Law |
76%
From NCERT
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A wire made of a metal of uniform resistivity \(1.0\times 10^{-6}~\Omega{\text{-m}}\) is \(2.0~\text{m}\) long and has a diameter of \(2.0\times 10^{-3}~\text{m}\). What is the electrical resistance of this length of the wire?
1. \(\dfrac {2.0 ~\times~10^{-3}}{\pi} ~\Omega\)
2. \(5.0 ~\times~10^{-13}\pi~\Omega\)
3. \(\dfrac {1.0}{2\pi}~\Omega\)
4. \(\dfrac{2.0}{\pi}~\Omega\)
1. \(\dfrac {2.0 ~\times~10^{-3}}{\pi} ~\Omega\)
2. \(5.0 ~\times~10^{-13}\pi~\Omega\)
3. \(\dfrac {1.0}{2\pi}~\Omega\)
4. \(\dfrac{2.0}{\pi}~\Omega\)
Subtopic: Derivation of Ohm's Law |
84%
From NCERT
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Two copper wires of length \(l\) and \(2l\) have radii \(r\) and \(2r\) respectively. What is the ratio of their specific resistances?
1. \(1:2\)
2. \(2:1\)
3. \(1:1\)
4. \(1:3\)
1. \(1:2\)
2. \(2:1\)
3. \(1:1\)
4. \(1:3\)
Subtopic: Derivation of Ohm's Law |
67%
From NCERT
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A certain wire \(A\) has resistance \(81\) \(\Omega\). The resistance of another wire \(B\) of the same material and equal length but of diameter thrice the diameter of \(A\) will be:
| 1. | \(81\) \(\Omega\) | 2. | \(9\) \(\Omega\) |
| 3. | \(729\) \(\Omega\) | 4. | \(243\) \(\Omega\) |
Subtopic: Derivation of Ohm's Law |
73%
From NCERT
NEET - 2023
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A metal rod of length 10 cm and a rectangular cross-section of \(1~ \text {cm} \times 1/2~ \text {cm}\) is connected to a battery across opposite faces. The resistance will be:
| 1. | maximum when the battery is connected across\(1~ \text {cm} \times 1/2~ \text {cm}\) faces. |
| 2. | maximum when the battery is connected across \(10~ \text {cm} \times 1~ \text {cm}\) faces. |
| 3. | maximum when the battery is connected across \(10~ \text {cm} \times 1/2~ \text {cm}\) faces. |
| 4. | same irrespective of the three faces. |
Subtopic: Derivation of Ohm's Law |
58%
From NCERT
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Two solid conductors are made up of the same material and have the same length and the same resistance. One of them has a circular cross-section of area and the other one has a square cross-section of area . The ratio is:
| 1. | \(1.5\) | 2. | \(1\) |
| 3. | \(0.8\) | 4. | \(2\) |
Subtopic: Derivation of Ohm's Law |
82%
From NCERT
NEET - 2020
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A negligibly small current is passed through a wire of length \(15~\text{m}\) and uniform cross-section \(6.0\times10^{-7}\) m2, and its resistance is measured to be \(5.0~\Omega.\) What is the resistivity of the material at the temperature of the experiment?
| 1. | \(1\times 10^{-7}~\Omega\text{m}\) | 2. | \(2\times 10^{-7}~\Omega\text{m}\) |
| 3. | \(3\times 10^{-7}~\Omega\text{m}\) | 4. | \(1.6\times 10^{-7}~\Omega\text{m}\) |
Subtopic: Derivation of Ohm's Law |
87%
From NCERT
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