Answer:
9R
Explanation:
We know that the resistance is
.
If we stretch the wire to a new length L2 = 3L, the cross-sectional area will also change. If the cross-sectional area doesn't change throughout the wire, we can say that:
Volume = L*A = 3L * A2 being A2 the new area after stretching the wire.
Since the volume remains the same we conclude that A2 = A/3
With this information, we calculate the new resistance:

Since
, and by simple inspection of the previous equation, we get:
<em>R2 = 9*R</em>
Answer:
A path that allows most of the current in an electric circuit to flow around or away from the principal elements or devices in the circuit.
Answer:
<h2>Flower </h2>
Explanation:
<h2>The flowers are the reproductive parts of a plant. Stamens are the male reproductive part and pistil is the female reproductive part.</h2><h2 />