What is the total resistance in the circuit? (include unit in answer - ohms)
1 answer:
You might be interested in
The object's velocity is decreasing.
Explanation:
From graph is the attached image, we can clearly point that the velocity of this motion is decreasing with time.
Velocity is a vector quantity.
- The y-axis represent displacement.
- The x-axis depicts time
- Using the graph, we know that the slope of the line on the graph gives us the velocity as it denotes the change of displacement with time.
- When we find the slope, it will give us a negative value which shows that the body is slowing down and not increasing speed.
learn more:
Velocity brainly.com/question/4460262
#learnwithBrainly
Answer with Explanation:
Let r be the resistance of short piece of copper wire.
Resistance of copper wire=R=
Resistance is directly proportional to length.
If a wire has greater resistance then,the wire will be greater in length.
Therefore,resistance of long piece of wire=7r
Total resistance of copper wire=Sum of resistance of two piece of wires
ohm
Resistance of long piece of wire=
Resistance of short piece of wire =
Resistivity of wire and cross section area of wire remains same .
Let L be the total length of wire and L' be the length of short piece of wire.
We know that
=
Where K==Constant
Using the formula
Length of short piece of wire=L'=
Length of long piece of wire=
% of length of short piece of wire=%
The resistance of the short piece=
The resistance of the long piece=