Answer:
L1/L2 = 6.47
Explanation:
In order to calculate the ratio of the lengths of the wires you use the following formula for the resistivity of a wire:
(1)
r: radius of the cross-sectional area of the wire
R: resistance of the wire
L: length of the wire
Then, you have for each wire:
The resistance and radius of the wires are the same, that is, R1 = R2 = R and r1 = r2 = r. By taking into account this last and dive the equation for the wire 2 into the wire 1, you obtain:
The ratio of the lengthd of the wires is L1/L2 = 6.47
The special feature of the upper mantle is the asthenosphere.It is located just below the lithosphere and is made up of rocks that is fluid and can move.The fluidity of these rocks powered the movement of the tectonic plates on the earths crust.Circular convection cycles in the hot,fluid upper mantle rock move the plates over the surface of the earth.
Field strength = (15 V) / (4 cm)
Field strength = (15 V) / (0.04 meter)
Field strength = (15/0.04) (volts/meter)
<em>Field strength = 375 volts/meter </em>
Dependent on what you are measuring and what took you are using. Please be more specific.
