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Q. No.Given below two statements:
Statement I:
Kirchhoff’s junction law follows the conservation of charge.
Statement II:
Kirchhoff’s loop law follows the conservation of energy.
1.
Both Statement I and Statement II are incorrect.
2.
Statement I is correct but Statement II is incorrect.
3.
Statement I is incorrect and Statement II is correct.
4.
Both Statement I and Statement II are correct.
Subtopic: Kirchoff's Current Law |
83%
From NCERT
AIPMT - 2010
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NEET 2025 - Target Batch
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NEET 2025 - Target Batch
A wire of resistance \(12~ \Omega \text{m}^{-1}\) is bent to form a complete circle of radius \(10~\text{cm}\). The resistance between its two diametrically opposite points, \(A\) and \(B\) as shown in the figure, is:
| 1. | \(0.6\pi~\Omega\) | 2. | \(3\pi ~\Omega\) |
| 3. | \(61 \pi~ \Omega\) | 4. | \(6\pi~\Omega\) |
Subtopic: Combination of Resistors |
66%
From NCERT
AIPMT - 2009
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NEET 2025 - Target Batch
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A student measures the terminal potential difference \(V\) of a cell (of emf \( E\) and internal resistance \(R\)) as a function of the current \(I\) flowing through it. The slope and intercept of the graph between \(V\) and \(I,\) respectively, is equal to:
1. \(E\) and \(-r\)
2. \(-r\) and \(E\)
2. \(-r\) and \(E\)
3. \(r\) and \(-E\)
4. \(-E\) and \(r\)
Subtopic: EMF & Terminal Voltage |
70%
From NCERT
AIPMT - 2009
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NEET 2025 - Target Batch
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See the electrical circuit shown in this figure. Which of the following is a correct equation for it?
| 1. | \(\varepsilon_1-(i_1+i_2)R-i_1r_1=0\) |
| 2. | \(\varepsilon_2-i_2r_2-\varepsilon_1-i_1r_1=0\) |
| 3. | \(-\varepsilon_2-(i_1+i_2)R+i_2r_2=0\) |
| 4. | \(\varepsilon_1-(i_1+i_2)R+i_1r_1=0\) |
Subtopic: Kirchoff's Voltage Law |
72%
From NCERT
AIPMT - 2009
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NEET 2025 - Target Batch
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A current of \(3~\text{A}\) flows through the \(2~\Omega\) resistor shown in the circuit. The power dissipated in the \(5~\Omega\) resistor is:
| 1. | \(4~\text{W}\) | 2. | \(2~\text{W}\) |
| 3. | \(1~\text{W}\) | 4. | \(5~\text{W}\) |
Subtopic: Heating Effects of Current |
81%
From NCERT
AIPMT - 2008
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NEET 2025 - Target Batch
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A wire of a certain material is stretched slowly by ten percent, it's new resistance and specific resistance become, respectively:
1. 1.2 times, 1.1 times
2. 1.21 times, same
3. both remain the same
4. 1.1 times, 1.1 times
Subtopic: Combination of Resistors |
84%
From NCERT
AIPMT - 2008
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NEET 2025 - Target Batch
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An electric kettle takes \(4~\text{A}\) current at \(220~\text{V}\). How much time will it take to boil \(1\) kg of water at a temperature of \(20^{\circ}\text{C}\)? The temperature of boiling water is \(100^{\circ}\text{C}\).
| 1. | \(6.3\) min | 2. | \(8.4\) min |
| 3. | \(12.6\) min | 4. | \(4.2\) min |
Subtopic: Heating Effects of Current |
53%
From NCERT
AIPMT - 2008
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NEET 2025 - Target Batch
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A cell can be balanced against 100 cm and 110 cm of potentiometer wire, respectively with and without being short-circuited through a resistance of 10 Ω. Its internal resistance is:
1. 1.0 Ω
2. 0.5 Ω
3. 2.0 Ω
4. zero
Subtopic: Meter Bridge & Potentiometer |
76%
From NCERT
AIPMT - 2008
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NEET 2025 - Target Batch
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In the circuit shown, the current through the 4 resistors is 1 A when the points P and M are connected to a DC voltage source. The potential difference between the points M and N is:
1. 1.5 V
2. 1.0 V
3. 0.5 V
4. 3.2 V
Subtopic: Combination of Resistors | EMF & Terminal Voltage |
61%
From NCERT
AIPMT - 2008
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NEET 2025 - Target Batch
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The total power dissipated in watts in the circuit shown below is:
| 1. | \(16\) W | 2. | \(40\) W |
| 3. | \(54\) W | 4. | \(4\) W |
Subtopic: Heating Effects of Current |
88%
From NCERT
AIPMT - 2007
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NEET 2025 - Target Batch
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