C. 1 Joule
Explanation:
Given:
Voltage = 1V
Quantity of charge = 1coulomb
Unknown:
Energy = ?
Solution:
The amount of work done is often related to the energy in a system.
In this electrical circuit, work done is the voltage that moves a particular charge.
work done = q x v
q is the quantity of charge
v is the voltage
the potential difference in circuit is the driving force of charges.
Work done = energy = qv
inputting the parameters;
Work done = 1 x 1 = 1J
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Answer:

Explanation:
The resistance of a wire is given by:

where
is the resistivity of the material
L is the length of the wire
A is the cross-sectional area of the wire
1) The first wire has length L and cross-sectional area A. So, its resistance is:

2) The second wire has length twice the first one: 2L, and same thickness, A. So its resistance is

3) The third wire has length L (as the first one), but twice cross sectional area, 2A. So, its resistance is

By comparing the three expressions, we find

So, this is the ranking of the wire from most current (least resistance) to least current (most resistance).