A \(5\) amp fuse wire can withstand a maximum power of \(1\) W in circuit. The resistance of the fuse wire is:
1. \(0.2\) Ω
2. \(5\) Ω
3. \(0.4\) Ω
4. \(0.04\) Ω
A \(5\) amp fuse wire can withstand a maximum power of \(1\) W in circuit. The resistance of the fuse wire is:
1. \(0.2\) Ω
2. \(5\) Ω
3. \(0.4\) Ω
4. \(0.04\) Ω
2. \(5\) Ω
3. \(0.4\) Ω
4. \(0.04\) Ω
Subtopic: Heating Effects of Current |
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A force \(F\) is given \(F=at+bt^2,\)where \(t\) is time. What are the dimensions of \(a\) and \(b\)?
1. \([MLT^{-1}]\) and \([MLT^{0}]\)
2. \([MLT^{-3}]\) and \([ML^2T^{4}]\)
3. \([MLT^{-4}]\) and \([MLT^{1}]\)
4. \([MLT^{-3}]\) and \([MLT^{-4}]\)
Subtopic: Dimensions |
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Two equal negative charges \(-q\) are fixed at the point \((0,a)\) and \((0,-a)\) on the y-axis. A Positive charge \(Q\) is released from rest at the point \((2a,0)\) on the x-axis. The charge will:
| 1. | execute SHM about the origin. |
| 2. | move to the origin and remain at rest. |
| 3. | move to infinity. |
| 4. | execute oscillatory but not SHM. |
Subtopic: Coulomb's Law |
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An ice cube of density \(900\) kg/m is floating in water of density \(1000\) kg/m. The percentage of the volume of ice-cube outside the water is:
1. \(20\)%
2. \(35\)%
3. \(10\)%
4. \(25\)%
Subtopic: Archimedes' Principle |
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Number of Hydrogen-bonded water molecules associated in CuSO4.5H2O is:
1. One
2. Two
3. Three
4. All the five
2. Two
3. Three
4. All the five
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Which of the following species do not show disproportionation on reaction?
ClO-, ClO2 -, ClO3 and ClO4
ClO-, ClO2 -, ClO3 and ClO4
1. ClO4
2. ClO3
3. ClO-
4. None of these
2. ClO3
3. ClO-
4. None of these
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During the estimation of nitrogen in the organic compound by Kjeldahl's method, the ammonia evolved from 0.5 g of the compound in Kjeldahl's estimation of nitrogen, neutralised 10 mL of 1M H2SO4. Find out the percentage of nitrogen in the compound.
1. 14%
2. 28%
3. 56%
4. 68%
2. 28%
3. 56%
4. 68%
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Which of the following compounds have highest melting point?
1. Only I
2. Only II
3. I and II
4. II and III
2. Only II
3. I and II
4. II and III
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