Mark 'True' or 'False' for following statements: 

a. Electric current can flow through metals.[[1]]

b. Instead of metal wires, a jute string can be used to make a circuit.[[2]]  

c. Electric current can pass through a sheet of thermocol.[[3]]

The following are the given statements about electric current. Let's analyze each of them and discuss whether the answer is true or false based on scientific principles.

Statement (a): Electric current can flow through metals.

Answer: True

Electric current can flow through metals because metals are good conductors of electricity. They allow electric current to flow through them with ease due to the presence of free electrons that can move within the material. Therefore, when we ask if electric current can flow through metals true or false, the answer is clearly true.

Statement (b): Instead of metal wires, a jute string can be used to make a circuit.

Answer: False

Jute strings are poor conductors of electricity. Since they do not allow electric current to pass through them, using jute string to make a circuit is not feasible. When considering whether electric current can flow through metals true or false, we find that jute string cannot serve as a suitable substitute for metal wires in a circuit. Therefore, the statement is false.

Statement (c): Electric current can pass through a sheet of thermocol.

Answer: False

Thermocol is an insulating material and is not conductive. It does not allow electric current to pass through it. Hence, electric current cannot flow through thermocol, and if asked whether electric current can flow through metals true or false, thermocol would not be a good example of a conductor. The statement is false.

Conclusion:

In conclusion, when analyzing whether electric current can flow through metals true or false, the answer is true for metals (statement a). However, for materials like jute string and thermocol, the electric current cannot flow through them, making statements (b) and (c) false.