Answers

2015-04-03T19:59:47+05:30
NO, THE BULB WILL NOT GLOW BECAUSE ERASER IS AN INSULATOR (NON-CONDUCTOR) OF ELECTRICITY AND HENCE IT WILL NOT ALLOW ELECTRICITY TO PASS THROUGH IT.
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2015-04-04T10:51:52+05:30
the bulb glows when there is a safety pin, because it is a good conductor (i.e. it conducts electricity) , while the eraser is an insulatr (i.e. it does resists electricity) hence when we use eraser at the place of safety pin, the bulb does not glow...

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