1.

Look at the figure shown below. Why is sealing wax filled in the space between the terminals of a bulb?

A.  To prevent the escape of air inside the bulb
B.  To prevent the contact between the two terminals
C.  To have a better contact of terminals with one another
D.  To give support to the supporting wires holding the filament
Answer» C.  To have a better contact of terminals with one another


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