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How does cross sectional area affect resistance?
the larger the cross sectional area, the smaller the resistance
How does surface area affect air resistance?
air resistance affects
If the side of a square is doubled in size to 8 by what percent did its area increase?
If the side of a square doubles, its area increases by a factor of 4 - an increase of 300%.If the side of a square doubles, its area increases by a factor of 4 - an increase of 300%.If the side of a square doubles, its area increases by a factor of 4 - an increase of 300%.If the side of a square doubles, its area increases by a factor of 4 - an increase of 300%.
What happens to the area of a square when you double its sides?
The area will increase by a factor of 4 in this case.
What increases the surface area of this part of the brain?
The folds in the brain increase the surface area. It nearly triples the surface area. As we grow, more of these bends form.
Does increasing the voltage across a resistor increase the electric current through the resistor?
Resistance is not affected by either voltage or current. It is determined only by the cross-sectional area, length, and resistivity of the material. As resistivity is affected by temperature, resistance is indirectly affected by temperature.In the so-called 'Ohm's Law' equation, resistance is a constant. So, if you increase voltage, the resistance remains constant, and the current would increase in proportional to the voltage.
If resistor X has the same length and is made of the same material as resistor Y but has twice the diameter. Resistor X has the blank resistance of resistor Y?
R = r*L/A where: R = resistance r = material resistivity L = length A = area Since you are doubling the diameter, you are increasing the area by a factor of 4, so Y will have 1/4 the resistance of X.
Does resistance increase as the cross-sectional area of the wire?
No, resistance decreases as the cross-sectional area of the wire increases. This is because a larger cross-sectional area provides more pathways for the electrons to flow through the wire, resulting in less resistance.
What will happen to the resistance of a wire if it is stretched to increase its length by 4 times?
If a wire is stretched to increase its length by 4 times, the resistance of the wire will also increase by 4 times. This is because resistance is directly proportional to the length of the wire, according to the formula R = ρ * (L/A), where ρ is the resistivity of the material, L is the length, and A is the cross-sectional area.
If both the diameter of wire and its length were quadrupled what will happen to its resistance?
If both the diameter and length of a wire are quadrupled, the resistance of the wire will increase by a factor of 16. This is because resistance is directly proportional to the length of the wire and inversely proportional to the cross-sectional area of the wire, which is determined by the diameter. By quadrupling both, the resistance will increase by 4^2 = 16 times.
What is the value of a resistor when current and voltage are both zero?
The value can be anything.As long as the resistance is not zero, if the voltage across the resistor is zero the current through the resistor will also be zero.The relevant equations is...Voltage = Resistance x CurrentIn the special case of superconductivity, the resistance is zero and you can have a current even if the voltage is zero.AnswerResistance is affected by the length of a material, its cross-sectional area, and its resistivity (which, in turn, is affected by temperature). The resistance of a resistor, therefore, is not affected by either voltage or current.
How do you increase resistance?
Since resistance is the ratio of voltage to current, if the voltage is constant then increasing the resistance will result in a reduction in current.
What are two ways to increase air resistance of an object?
Increasing the surface area of the object, such as by adding flaps or a parachute, can increase air resistance. Additionally, increasing the object's speed will also increase the air resistance acting on it.
How does an open parachute increase the air resistance of a falling?
by increasing surface area
How does a open parachute increase the air resistance of a falling skydiver?
by increasing surface area
What factor that govern the value of resistance in a resistor?
It can be because of the material used.As we know R=PL/A where R=resistance P=resistivity of the material used L=length of the conductor A=area of cross section of the conductor
How does resistivity vary if length and area are doubled?
if length is doubled then resistivity increases&when area is doubled resistivity decreases.
