A D-cell is about 6 cm long and 3.5 cm
in diameter.  Assume that the field points directly from the positive
endplate to the negative endplate, even though this is not strictly true
the way the D-cell is normally constructed.
<p>
What is the approximate magnitude of the electric field inside a 1.5-V  
D-cell between its terminals  -
<ol type="a">
<li>4.0 N/C
<li>0.25 N/C
<li>25 N/C
<li>0.040 N/C
<li>9.0 N/C
</ol>