What type of relationship exists between the length of wire in the resistance if all other factors remain the same?
What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? Resistance is directly related to length.
What type of relationship exists between the length of a wire?
The resistance of a long wire is greater than the resistance of a short wire because electrons collide with more ions as they pass through. The relationship between resistance and wire length is proportional .
How does the resistance of a wire depends on its diameter?
Where R is the resistance of the conductor, L is the length of the conductor and A is the cross-sectional area of the conductor. So, we can say that the resistance of a wire is inversely proportional to the square of the radius of the wire.
How will the resistance of a wire change if its diameter is doubled?
Formula. Hence, if diameter doubles, resistance becomes 1/4 times.
When wire is doubled What is the diameter?
The resistance of the wire becomes one-fourth, when the diameter of the wire is doubled. Hence, the correct option is \( \left(d\right)\).
What happens to resistance if radius is doubled?
(b) Resistance of a wire is inversely proportional to the area of cross-section the wire. Thus, if radius is doubled, area increases four times and hence the resistance becomes one-fourth.
What will be effect on specific resistance of radius of copper wire is doubled?
No. It won’t change. Specific resistance (also called as resistivity) is specific to material of the wire. It is independent of dimensions of wire.
Why is the resistance wire doubled before winding over the bobbin?
The resistance coils are double would to avoid induction effects Magnetic field deu to current in one half of the coil is cancelled by magnetic field due to current in the other half of the coil (which is in opposite direction).
In what materials the resistance decreases with increase in temperature?
Increased temperature results in reduced resistance in insulators and partial conductors, such as carbon.