Question

Match the items in column - I with those in column - II

	Column I		Column II
1.	Electric Fuse	A	Chemical Effect
2.	Relay	B	Electric Discharge
3.	CFL	C	Magnetic effect
4.	Button Cell	D	Heating Effect

Which of the following shows the correct matching ?

• A. 1 - C, 2 - B, 3 - A, 4 - D
• B. 1 - B, 2 - A, 3 - C, 4 - D
• C. 1 - D, 2 - C, 3 - B, 4 - A
• D. 1 - D, 2 - B, 3 - C, 4 - A

Answer 1

Answer: (C)

1 - D, 2 - C, 3 - B, 4 - A

Electric fuse is used to protect electric appliances. When current larger than specified value flows through the circuit, the temperature of the fuse wire increases. This melts the fuse wire and breaks the circuit.

In relay transmission electromagnetic waves are used.

CFL works on electric discharge. In button cell electrolytes are the sources of ions.

In the button cell electrolytes are sources of ions.

Option C is correct.