Question

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ial uliTerence.)
Thus, if current flows from point A to
point B in a wire, we say that A is at a higher
potential than B. or that there is a potential
difference between A and B.
An electric cell or battery is a device that
in the wire (Fig. 17.7c).
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ORAL QUESTIONS
In a simple electric circuit consisting of a cell, conducting wires, a bulb and a switch, the switch must
be connected very close to the cell; otherwise it will not work properly. Do you agree? Give reasons
2. Which insulator is used in an electric switch to cut off the supply of current-plastic, wood or air?
3. What kind of wire will you use for the following--one offering low resistance or one
resistance?
a. connecting wire b. filament of a bulb
4. Which terminal of a cell is at higher potential--positive or negative? How does this affect the
direction of flow of electric current?
flow
investigati
terminal is at a higher potential than the
negative terminal. When these terminals are
connected by a metal wire, current flows from
the positive terminal to the negative terminal
and thickness
svetated in a​

Answer 1

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and

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