Impedance vs. Resistance
Impedancenoun
The act of impeding; that which impedes; a hindrance.
Impedancenoun
(physics) A measure of the opposition to the flow of an alternating current in a circuit; the aggregation of its resistance, and inductive and capacitive reactances; the ratio of voltage to current treated as complex quantities.
Impedancenoun
(physics) A quantity analogous to electrical impedance in some other energy domain
Impedancenoun
a measure of opposition to motion of something subjected to a force; the ratio of force to velocity treated as complex quantities.
Impedancenoun
the ratio of sound pressure to volume flow rate treated as complex quantities.
Impedancenoun
a measure of the opposition caused by differences between two paradigms, especially between object-oriented development and relational databases
Impedancenoun
The apparent resistance in an electric circuit to the flow of an alternating current, analogous to the actual electrical resistance to a direct current, being the ratio of electromotive force to the current. It is equal to R2 + X2, where R = ohmic resistance, X = reactance. For an inductive circuit, X = 2
Impedancenoun
a material's opposition to the flow of electric current; measured in ohms
Resistancenoun
The act of resisting, or the capacity to resist.
Resistancenoun
(physics) A force that tends to oppose motion.
Resistancenoun
(physics) Shortened form of electrical resistance.
Resistancenoun
An underground organisation engaged in a struggle for liberation from forceful occupation; a resistance movement.
Resistancenoun
The act of resisting; opposition, passive or active.
Resistancenoun
The quality of not yielding to force or external pressure; that power of a body which acts in opposition to the impulse or pressure of another, or which prevents the effect of another power; as, the resistance of the air to a body passing through it; the resistance of a target to projectiles.
Resistancenoun
A means or method of resisting; that which resists.
Resistancenoun
A certain hindrance or opposition to the passage of an electrical current or discharge offered by conducting bodies. It bears an inverse relation to the conductivity, - good conductors having a small resistance, while poor conductors or insulators have a very high resistance. The unit of resistance is the ohm.
Resistancenoun
the action of opposing something that you disapprove or disagree with;
Resistancenoun
any mechanical force that tends to retard or oppose motion
Resistancenoun
a material's opposition to the flow of electric current; measured in ohms
Resistancenoun
the military action of resisting the enemy's advance;
Resistancenoun
(medicine) the condition in which an organism can resist disease
Resistancenoun
a secret group organized to overthrow a government or occupation force
Resistancenoun
the degree of unresponsiveness of a disease-causing microorganism to antibiotics or other drugs (as in penicillin-resistant bacteria)
Resistancenoun
(psychiatry) an unwillingness to bring repressed feelings into conscious awareness
Resistancenoun
an electrical device that resists the flow of electrical current
Resistancenoun
group action in opposition to those in power
Resistancenoun
the refusal to accept or comply with something
Resistancenoun
the use of force or violence to oppose someone or something
Resistancenoun
a secret organization resisting authority, especially in an occupied country
Resistancenoun
the underground movement formed in France during the Second World War to fight the German occupying forces and the Vichy government.
Resistancenoun
the ability not to be affected by something, especially adversely
Resistancenoun
lack of sensitivity to a drug, insecticide, etc., especially as a result of continued exposure or genetic change
Resistancenoun
the impeding or stopping effect exerted by one material thing on another
Resistancenoun
the degree to which a substance or device opposes the passage of an electric current, causing energy dissipation. By Ohm's law resistance (measured in ohms) is equal to the voltage divided by the current.
Resistancenoun
a resistor or other circuit component which opposes the passage of an electric current.
