- 1(current)
Q. No.The plot of current \(I~\text{(A)}\) flowing through a metallic conductor versus the applied voltage \(V~\text{(volt)}\) across the ends of a conductor is:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Â Derivation of Ohm's Law |
 80%
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NEET - 2022
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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: Â Derivation of Ohm's Law |
 75%
From NCERT
NEET - 2023
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On the basis of electrical conductivity, which one of the following material has the smallest resistivity?
1. Germanium
2. Silver
3. Glass
4. Silicon
1. Germanium
2. Silver
3. Glass
4. Silicon
Subtopic: Â Derivation of Ohm's Law |
 65%
From NCERT
NEET - 2023
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As the temperature of a metallic resistor is increased, the product of its resistivity and conductivity:
1. increases
2. decreases
3. remains constant
4. may increase or decrease
Subtopic: Â Derivation of Ohm's Law |
 76%
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Subtopic: Â Derivation of Ohm's Law |
 81%
From NCERT
NEET - 2022
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The resistance of platinum wire at \(0^{\circ} \text{C}\) is \(2~ \Omega\) and \(6.8~ \Omega\) at \(80^{\circ}\text{C}\). The temperature coefficient of resistance of the wire is:
1. \(3\times 10^{-1}~^\circ \text{C}^{-1}\)
2. \(3 \times 10^{-4}~^\circ \text{C}^{-1}\)
3. \(3 \times 10^{-3}~^\circ \text{C}^{-1}\)
4. \(3 \times 10^{-2}~^\circ \text{C}^{-1}\)
1. \(3\times 10^{-1}~^\circ \text{C}^{-1}\)
2. \(3 \times 10^{-4}~^\circ \text{C}^{-1}\)
3. \(3 \times 10^{-3}~^\circ \text{C}^{-1}\)
4. \(3 \times 10^{-2}~^\circ \text{C}^{-1}\)
Subtopic: Â Derivation of Ohm's Law |
 72%
From NCERT
NEET - 2023
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- 1(current)
Q. No.
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