Question

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Answer 1

Answer:

a. THE ELECTRIC BULB CONTAINS A THIN WIRE CALLED FILLAMENT WHICH GLOWS WHEN ELECTRICITY PASSES THROUGH IT

b. THE ELECTRIC BELL WORKS ON THE PRINCIPLE OF MAGNETIC EFFECT OF ELECTRIC CURRENT

c.IN A BATTERY THE POSITIVE TERMINAL OF ONE CELL SHOULD CONNECT TO THE NEGATIVE TERMINAL OF THE OTHER CELL.

d. IN A CELL, POSITIVE TERMINAL IS DENOTED MY LONG AND THIN LINE WHEREAS NEGATIVE TERMINAL IS DENOTED BY SHORT AND THIN LINE.

e. HANS CHRISTIAN OERSTED OBSERVED THE MAGNETIC EFFECTS OF CURRENT FOR FIRST TIME.

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