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Choose the true and false statements from the following:
1. It is convenient to represent electric components by symbols.
2. A connecting wire is symbolized by a zig-zag line in the circuit diagram.
3. When an electric current flows through a wire, the wire gets heated.
4. The key or switch can be placed anywhere in the circuit.
5. The amount of heat produced in a wire depends on its material, length and thickness.
6. CFLs consume more electricity than ordinary bulbs.
7. For different requirements, the wire of different materials, different length and thicknesses are used.
8. A fuse is used to save energy in electrical circuits.
9. MCBs are the switches which automatically turn off when current in a circuit exceeds the safe limit.
10. When an electric current flows through a wire, it behaves like a magnet.
1. It is convenient to represent electric components by symbols.
Ans- True.
2. A connecting wire is symbolized by a zig-zag line in the circuit diagram.
Ans- False.
3. When an electric current flows through a wire, the wire gets heated.
Ans- True.
4. The key or switch can be placed anywhere in the circuit.
Ans- True.
5. The amount of heat produced in a wire depends on its material, length and thickness.
Ans- True.
6. CFLs consume more electricity than ordinary bulbs.
Ans- False.
7. For different requirements, the wire of different materials, different length and thicknesses are used.
Ans- True.
8. A fuse is used to save energy in electrical circuits.
Ans- False.
9. MCBs are the switches which automatically turn off when current in a circuit exceeds the safe limit.
Ans- True.
10. When an electric current flows through a wire, it behaves like a magnet.
Ans- True.
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