If, conversely, tin is used to coat steel, when a breach of the coating occurs it actually accelerates oxidation of the iron.

If a cerebral AVM is detected before a stroke occurs, usually the arteries feeding blood into the nidus can be closed off to avert the danger.

If suppuration occurs, it may need needle aspiration.

If this occurs, the referee separates the opponents and orders them to continue boxing.

If an injury occurs, one caver stays with the injured person while the other two go out for help, providing assistance to each other on their way out.

If this occurs, the oil will burn and has to be replaced.

If no bulk flow occurs in an element of length dx, the rates of diffusion of two gases A and B must be equal and opposite, that is.

If we choose the shape of the control volume such that all flow in or out occurs perpendicular to its surface, then the flow of matter into the system performs work as if it were a piston of fluid pushing mass into the system, and the system performs work on the flow of matter out as if it were driving a piston of fluid.

If deactivation occurs during the first reading, the reader does not need to undergo deactivation in the second reading.

If a seizure lasts longer than 5 minutes, or if more than one seizure occurs without regaining consciousness emergency medical services should be contacted.

* If a leap occurs, it must be small and immediately countered by stepwise motion in the opposite direction.

If a mutation occurs within a gene, the new allele may affect the trait that the gene controls, altering the phenotype of the organism.

If the guessing player suggests a letter which occurs in the word, the other player writes it in all its correct positions.

If the value being sought occurs k times in the list, and all orderings of the list are equally likely, the expected number of comparisons is

If bad weather occurs during flowering, the Merlot vine is prone to develop coulure.

If unsuccessful, nothing interesting occurs.

If surviving Linear B clay tablets can be trusted, the name po-se-da-wo-ne (" Poseidon ") occurs with greater frequency than does di-u-ja (" Zeus ").

If there is still a tie for first place, a jump-off occurs to break the tie.

If this occurs, then the vice president will assume the presidential powers and duties as acting president ; however, the president can declare that no such inability exists and resume the discharge of the presidential powers and duties.

If the former occurs, then any subsequent measurement performed by Bob, in the same basis, will always return 1.

If the latter occurs, ( Alice measures 1 ) then Bob's measurement will return 0 with certainty.

If an interrupt occurs that makes a high priority task ready during the insertion of a low priority task, that high priority task can be inserted and run immediately before the low priority task is inserted.

If the full moon occurs on a Sunday, Easter is the following Sunday.

If the full moon occurs on a Sunday, Easter is the following Sunday.

If one throws a die once, it is difficult to predict the outcome, but if we repeat this experiment many times, we will see that the number of times each result occurs divided by the number of throws will eventually stabilize towards a specific value.

If an evacuated glass tube is equipped with two electrodes and a voltage is applied, the glass opposite of the negative electrode is observed to glow, due to electrons emitted from and travelling perpendicular to the cathode ( the electrode connected to the negative terminal of the voltage supply ).

If the data to be compressed is analog ( such as a voltage that varies with time ),

If a chemical reaction is driven by an external applied voltage, as in electrolysis, or if a voltage is created by a chemical reaction as in a battery, it is an electrochemical reaction.

If drain-to-source voltage is increased, this creates a significant asymmetrical change in the shape of the channel due to a gradient of voltage potential from source to drain.

If drain-to-source voltage is increased further, the pinch-off point of the channel begins to move away from the drain towards the source.

If the magnetic field is applied by a solenoid, the sensor output is proportional to the product of the current through the solenoid and the sensor voltage.

If the applied voltage is large enough, the liquid crystal molecules in the center of the layer are almost completely untwisted and the polarization of the incident light is not rotated as it passes through the liquid crystal layer.

If the answer was incorrect, the teacher would administer a shock to the learner, with the voltage increasing in 15-volt increments for each wrong answer.

If the voltage changes by a large enough amount, an all-or-none electrochemical pulse called an action potential is generated, which travels rapidly along the cell's axon, and activates synaptic connections with other cells when it arrives.

If the inverting input is held at ground ( 0 V ) directly or by a resistor, and the input voltage V < sub > in </ sub > applied to the non-inverting input is positive, the output will be maximum positive ; if V < sub > in </ sub > is negative, the output will be maximum negative.

If predictable operation is desired, negative feedback is used, by applying a portion of the output voltage to the inverting input.

If the input voltages change in the same direction, the negative feedback makes Q3 / Q4 base voltage follow ( with 2V < sub > BE </ sub > below ) the input voltage variations.

If the base current to the transistor is assumed to be zero, the negative feedback forces the transistor to increase its collector-emitter voltage up to 1 V until its base-emitter voltage reaches 0. 625 V ( a typical value for a BJT in the active region ).

If the voltage to be sensed, E < sub > i </ sub >, is applied to op amp's (+) input, the result is a noninverting positive-level detector: when E < sub > i </ sub > is above V < sub > ref </ sub >, V < sub > O </ sub > equals + V < sub > sat </ sub >; when E < sub > i </ sub > is below V < sub > ref </ sub >, V < sub > O </ sub > equals − V < sub > sat </ sub >.

If the component is a resistor with time-invariant voltage to current ratio, then:

If the voltage is zero, this means that the resistance is zero.

If the collector voltage were zero, the collector current would be limited only by the light bulb resistance and the supply voltage.

If a load is connected to the secondary winding, the load current and voltage will be in the directions indicated, given the primary current and voltage in the directions indicated ( each will be alternating current in practice ).