OHM'S LAW \& FACTORS EFFECTING RESISTANCE
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Current Electricity

268202 O hm's law is not applicable for

1 insulators
2 semi conductors
3 vaccumtube
4 all the above
Current Electricity

268203 V - I graphs for two materials is shown in the figure. Thegraphs are drawn at two different temperatures.

1 \(T_{1}-T_{2} \propto \cot 2 \theta\)
2 \(\mathrm{T}_{1}-\mathrm{T}_{2} \propto \sin 2 \theta\)
3 \(\mathrm{T}_{1}-\mathrm{T}_{2} \propto \tan 2 \theta\)
4 \(\mathrm{T}_{1}-\mathrm{T}_{2} \propto \cos 2 \theta\)
Current Electricity

268204 Wires of Nichrome and C opper of equal dimensions are connected in series in electrical circuit. Then

1 Morecurrent will flow incopper wire
2 Morecurrent will flow inNichromewire
3 Copper wirewill get heated more
4 Nichromewirewill get heated more
Current Electricity

268205 At absolute zero silver wire behaves as

1 Super conductor
2 Semi conductor
3 Perfect insulator
4 Servi insulator
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Current Electricity

268202 O hm's law is not applicable for

1 insulators
2 semi conductors
3 vaccumtube
4 all the above
Current Electricity

268203 V - I graphs for two materials is shown in the figure. Thegraphs are drawn at two different temperatures.

1 \(T_{1}-T_{2} \propto \cot 2 \theta\)
2 \(\mathrm{T}_{1}-\mathrm{T}_{2} \propto \sin 2 \theta\)
3 \(\mathrm{T}_{1}-\mathrm{T}_{2} \propto \tan 2 \theta\)
4 \(\mathrm{T}_{1}-\mathrm{T}_{2} \propto \cos 2 \theta\)
Current Electricity

268204 Wires of Nichrome and C opper of equal dimensions are connected in series in electrical circuit. Then

1 Morecurrent will flow incopper wire
2 Morecurrent will flow inNichromewire
3 Copper wirewill get heated more
4 Nichromewirewill get heated more
Current Electricity

268205 At absolute zero silver wire behaves as

1 Super conductor
2 Semi conductor
3 Perfect insulator
4 Servi insulator
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Current Electricity

268202 O hm's law is not applicable for

1 insulators
2 semi conductors
3 vaccumtube
4 all the above
Current Electricity

268203 V - I graphs for two materials is shown in the figure. Thegraphs are drawn at two different temperatures.

1 \(T_{1}-T_{2} \propto \cot 2 \theta\)
2 \(\mathrm{T}_{1}-\mathrm{T}_{2} \propto \sin 2 \theta\)
3 \(\mathrm{T}_{1}-\mathrm{T}_{2} \propto \tan 2 \theta\)
4 \(\mathrm{T}_{1}-\mathrm{T}_{2} \propto \cos 2 \theta\)
Current Electricity

268204 Wires of Nichrome and C opper of equal dimensions are connected in series in electrical circuit. Then

1 Morecurrent will flow incopper wire
2 Morecurrent will flow inNichromewire
3 Copper wirewill get heated more
4 Nichromewirewill get heated more
Current Electricity

268205 At absolute zero silver wire behaves as

1 Super conductor
2 Semi conductor
3 Perfect insulator
4 Servi insulator
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Current Electricity

268202 O hm's law is not applicable for

1 insulators
2 semi conductors
3 vaccumtube
4 all the above
Current Electricity

268203 V - I graphs for two materials is shown in the figure. Thegraphs are drawn at two different temperatures.

1 \(T_{1}-T_{2} \propto \cot 2 \theta\)
2 \(\mathrm{T}_{1}-\mathrm{T}_{2} \propto \sin 2 \theta\)
3 \(\mathrm{T}_{1}-\mathrm{T}_{2} \propto \tan 2 \theta\)
4 \(\mathrm{T}_{1}-\mathrm{T}_{2} \propto \cos 2 \theta\)
Current Electricity

268204 Wires of Nichrome and C opper of equal dimensions are connected in series in electrical circuit. Then

1 Morecurrent will flow incopper wire
2 Morecurrent will flow inNichromewire
3 Copper wirewill get heated more
4 Nichromewirewill get heated more
Current Electricity

268205 At absolute zero silver wire behaves as

1 Super conductor
2 Semi conductor
3 Perfect insulator
4 Servi insulator