what are the four factors that determine resistance?
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Factors That Affect Resistance How much resistance a material has depends on several factors: the type of material, its width, its length, and its temperature.
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['Social Factors.', 'Direct Instruction.', 'Family.', 'Prejudices.', 'Personal Experience.', 'Media.', 'Educational and Religious Institutions.', 'Physical Factors.']
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['The type of material of which the resistor is made.', 'The length of the resistor.', 'The thickness of the resistor.', 'The temperature of the conductor.']
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Four resistors yields nine combinations. The advantage is that by using four resistors, the power dissipation capability has also increased by a factor of four, and the voltage withstand doubles. This is a useful trick when you want to keep all your resistors surface-mount types.
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Factors Affecting Motor Performance. Motor performance depends on three elements such as voltage across terminals, resistance across terminals, and magnetic force. Various factors that affect these elements and change motor performance will be discussed here by way of giving some specific examples.
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['hardness, hot hardness and pressure resistance.', 'bending strength and toughness.', 'inner bonding strength.', 'wear resistance. oxidation resistance. small prosperity to diffusion and adhesion. abrasion resistance. edge strength.']
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These factors are the "forces of evolution." There are four such forces: mutation, gene flow, genetic drift, and natural selection.
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['Specific gravity.', 'Abrasion resistance.', 'Tear resistance.', 'Compression set.', 'Resilience.', 'Elongation.', 'Tensile modulus.', 'Tensile strength.']
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Three main sources of peripheral resistance: Blood vessel diameter, blood viscosity, and total vessel length. If arteries lose their elasticity and become more rigid, blood pressure increases.
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['The Volt. The pressure that is put on free electrons that causes them to flow is known as electromotive force (EMF). ... ', 'The Ampere. ... ', 'The Ohm.']
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['Sample Size. Power depends on sample size. Other things being equal, larger sample size yields higher power. ... ', 'Variance. Power also depends on variance: smaller variance yields higher power. ... ', 'Experimental Design.']
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Vessel resistance (R) is directly proportional to the length (L) of the vessel and the viscosity (η) of the blood, and inversely proportional to the radius to the fourth power (r4).
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['Individual factors, such as knowledge, values, personal goals, morals and personality.', 'Social factors, such as cultural norms, the Internet and friends and family.']
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['Agile Strength. ... ', 'Strength Endurance. ... ', 'Explosive Strength. ... ', 'Maximum Strength. ... ', 'Relative Strength. ... ', 'Speed Strength. ... ', 'Starting Strength.']
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Peripheral resistance is the resistance of the arteries to blood flow. As the arteries constrict, the resistance increases and as they dilate, resistance decreases. Peripheral resistance is determined by three factors: Autonomic activity: sympathetic activity constricts peripheral arteries.
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The resistance-change factor per degree Celsius of temperature change is called the temperature coefficient of resistance. This factor is represented by the Greek lower-case letter “alpha” (α). A positive coefficient for a material means that its resistance increases with an increase in temperature.
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Resistance is the physical property of a substance because of which it opposes the flow of current i.e. electrons. Resistivity is the physical property of a particular substance which is having particular dimensions.