152586
If current is passed through $\mathrm{Sb}-\mathrm{Bi}$ thermocouple then
1 heat is produced at junction where current is from $\mathrm{Sb}$ to $\mathrm{Bi}$
2 heat is absorbed at junction where current is from $\mathrm{Sb}$ to $\mathrm{Bi}$
3 Both junction will become hot
4 Both junction will become cold
Explanation:
A If current is passed through $\mathrm{Sb}-\mathrm{Bi}$ thermocouple then heat is produced at junction where current is from $\mathrm{Sb}$ to $\mathrm{Bi}$.
CG PET- 2007
Current Electricity
152587
Emf of lead accumulator after complete charging is
1 $2.0 \mathrm{~V}$
2 $1.8 \mathrm{~V}$
3 $1.5 \mathrm{~V}$
4 $2.2 \mathrm{~V}$
Explanation:
D Emf of completely charged lead accumulator is $2.2 \mathrm{~V}$.
CG PET- 2007
Current Electricity
152590
For comparing the emf's of two cells with a potentiometer, a standard cell is used to develop a potential gradient along the wires. Which of the following possibilities would make the experiment unsuccessful?
1 The emf of the standard cell is larger than the emf's of the two cells.
2 The diameter of the wires is the same and uniform throughout.
3 The number of wires is ten
4 The emf's of the standard cell is smaller than the emf's of the two cells.
Explanation:
D If the emf of the standard cell is smaller than the emf of the two cells than balance point is not obtained.
CG PET- 2005
Current Electricity
152594
Pick out the wrong statement.
1 In a simple battery circuit, the point of lowest potential is the negative terminal of the battery
2 The resistance of an incandescent lamp is greatest when the lamp is switched off
3 An ordinary $100 \mathrm{~W}$ lamp has less resistance than a $60 \mathrm{~W}$ lamp
4 At constant voltage, the heat development in a uniform wire varies inversely as the length of the wire used
Explanation:
B When switched off, resistance of an incandescent lamp increases.
152586
If current is passed through $\mathrm{Sb}-\mathrm{Bi}$ thermocouple then
1 heat is produced at junction where current is from $\mathrm{Sb}$ to $\mathrm{Bi}$
2 heat is absorbed at junction where current is from $\mathrm{Sb}$ to $\mathrm{Bi}$
3 Both junction will become hot
4 Both junction will become cold
Explanation:
A If current is passed through $\mathrm{Sb}-\mathrm{Bi}$ thermocouple then heat is produced at junction where current is from $\mathrm{Sb}$ to $\mathrm{Bi}$.
CG PET- 2007
Current Electricity
152587
Emf of lead accumulator after complete charging is
1 $2.0 \mathrm{~V}$
2 $1.8 \mathrm{~V}$
3 $1.5 \mathrm{~V}$
4 $2.2 \mathrm{~V}$
Explanation:
D Emf of completely charged lead accumulator is $2.2 \mathrm{~V}$.
CG PET- 2007
Current Electricity
152590
For comparing the emf's of two cells with a potentiometer, a standard cell is used to develop a potential gradient along the wires. Which of the following possibilities would make the experiment unsuccessful?
1 The emf of the standard cell is larger than the emf's of the two cells.
2 The diameter of the wires is the same and uniform throughout.
3 The number of wires is ten
4 The emf's of the standard cell is smaller than the emf's of the two cells.
Explanation:
D If the emf of the standard cell is smaller than the emf of the two cells than balance point is not obtained.
CG PET- 2005
Current Electricity
152594
Pick out the wrong statement.
1 In a simple battery circuit, the point of lowest potential is the negative terminal of the battery
2 The resistance of an incandescent lamp is greatest when the lamp is switched off
3 An ordinary $100 \mathrm{~W}$ lamp has less resistance than a $60 \mathrm{~W}$ lamp
4 At constant voltage, the heat development in a uniform wire varies inversely as the length of the wire used
Explanation:
B When switched off, resistance of an incandescent lamp increases.
152586
If current is passed through $\mathrm{Sb}-\mathrm{Bi}$ thermocouple then
1 heat is produced at junction where current is from $\mathrm{Sb}$ to $\mathrm{Bi}$
2 heat is absorbed at junction where current is from $\mathrm{Sb}$ to $\mathrm{Bi}$
3 Both junction will become hot
4 Both junction will become cold
Explanation:
A If current is passed through $\mathrm{Sb}-\mathrm{Bi}$ thermocouple then heat is produced at junction where current is from $\mathrm{Sb}$ to $\mathrm{Bi}$.
CG PET- 2007
Current Electricity
152587
Emf of lead accumulator after complete charging is
1 $2.0 \mathrm{~V}$
2 $1.8 \mathrm{~V}$
3 $1.5 \mathrm{~V}$
4 $2.2 \mathrm{~V}$
Explanation:
D Emf of completely charged lead accumulator is $2.2 \mathrm{~V}$.
CG PET- 2007
Current Electricity
152590
For comparing the emf's of two cells with a potentiometer, a standard cell is used to develop a potential gradient along the wires. Which of the following possibilities would make the experiment unsuccessful?
1 The emf of the standard cell is larger than the emf's of the two cells.
2 The diameter of the wires is the same and uniform throughout.
3 The number of wires is ten
4 The emf's of the standard cell is smaller than the emf's of the two cells.
Explanation:
D If the emf of the standard cell is smaller than the emf of the two cells than balance point is not obtained.
CG PET- 2005
Current Electricity
152594
Pick out the wrong statement.
1 In a simple battery circuit, the point of lowest potential is the negative terminal of the battery
2 The resistance of an incandescent lamp is greatest when the lamp is switched off
3 An ordinary $100 \mathrm{~W}$ lamp has less resistance than a $60 \mathrm{~W}$ lamp
4 At constant voltage, the heat development in a uniform wire varies inversely as the length of the wire used
Explanation:
B When switched off, resistance of an incandescent lamp increases.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Current Electricity
152586
If current is passed through $\mathrm{Sb}-\mathrm{Bi}$ thermocouple then
1 heat is produced at junction where current is from $\mathrm{Sb}$ to $\mathrm{Bi}$
2 heat is absorbed at junction where current is from $\mathrm{Sb}$ to $\mathrm{Bi}$
3 Both junction will become hot
4 Both junction will become cold
Explanation:
A If current is passed through $\mathrm{Sb}-\mathrm{Bi}$ thermocouple then heat is produced at junction where current is from $\mathrm{Sb}$ to $\mathrm{Bi}$.
CG PET- 2007
Current Electricity
152587
Emf of lead accumulator after complete charging is
1 $2.0 \mathrm{~V}$
2 $1.8 \mathrm{~V}$
3 $1.5 \mathrm{~V}$
4 $2.2 \mathrm{~V}$
Explanation:
D Emf of completely charged lead accumulator is $2.2 \mathrm{~V}$.
CG PET- 2007
Current Electricity
152590
For comparing the emf's of two cells with a potentiometer, a standard cell is used to develop a potential gradient along the wires. Which of the following possibilities would make the experiment unsuccessful?
1 The emf of the standard cell is larger than the emf's of the two cells.
2 The diameter of the wires is the same and uniform throughout.
3 The number of wires is ten
4 The emf's of the standard cell is smaller than the emf's of the two cells.
Explanation:
D If the emf of the standard cell is smaller than the emf of the two cells than balance point is not obtained.
CG PET- 2005
Current Electricity
152594
Pick out the wrong statement.
1 In a simple battery circuit, the point of lowest potential is the negative terminal of the battery
2 The resistance of an incandescent lamp is greatest when the lamp is switched off
3 An ordinary $100 \mathrm{~W}$ lamp has less resistance than a $60 \mathrm{~W}$ lamp
4 At constant voltage, the heat development in a uniform wire varies inversely as the length of the wire used
Explanation:
B When switched off, resistance of an incandescent lamp increases.
