The source of electrons lighting common lamps in your classroom is
1) the power company,
2) the electrical outlet,
3) atoms in the lamp filament,
4) the wires leading to the lamp,
whereas the source of energy that lights a common lamp in your home is
5) the power company.
6) the electrical outlet.
7) atoms in the bulb filament.
8) the wires leading to the lamp.
Question 2
A bird sitting on a bare high-voltage wire is not electrocuted because
1) of the high resistance of its body.
2) of no electrical potential difference across its body.
3) its body is at a low electric potential compared to the wire.
4) the high voltage across its feet produces a very small current.
If the bird stood on the wire with only one foot, it would
5) be electrocuted.
6) remain unharmed.
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