Chapter-14 ➤ Electric Current and Its Effects

1. Where can the key or switch be placed in the circuit?

 
 
 
 

2. The key or switch can be placed anywhere in the circuit.

 
 

3. Choose the statement which is not correct in the case of an electric fuse.

 
 
 
 

4. The coil of wire contained in an electric heater is known as

 
 
 
 

5. In making a battery

 
 
 
 

6. For different requirements, the wires of different materials, different lengths and thicknesses are used.

 
 

7. When an electric current flows through a wire, the wire gets heated.

 
 

8. Which mark is necessary on electric appliances?

 
 
 
 

9. Which of the following precautions need not be taken while using electric gadgets / appliances/circuit?

 
 
 
 

10. A connecting wire is symbolized by a zig-zag line in the circuit diagram.

 
 

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