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  2. Ayrton shunt - Wikipedia

    en.wikipedia.org/wiki/Ayrton_shunt

    The selector switch changes the amount of resistance in parallel with R m (meter resistance). The voltage drop across parallel branches is always equal. When all resistances are placed in parallel with R m maximum sensitivity of ammeter is reached. [5] Ayrton shunt is rarely used for currents above 10 amperes. [6] m1 = I1/Im , m2 = I2/Im, m3 ...

  3. Shunt (electrical) - Wikipedia

    en.wikipedia.org/wiki/Shunt_(electrical)

    An ammeter shunt allows the measurement of current values too large to be directly measured by a particular ammeter. In this case, a separate shunt, a resistor of very low but accurately known resistance, is placed in parallel with a voltmeter, so that virtually all of the current to be measured will flow through the shunt (provided that the ...

  4. Ammeter - Wikipedia

    en.wikipedia.org/wiki/Ammeter

    Traditionally, the meter used with a shunt has a full-scale deflection (FSD) of 50 mV, so shunts are typically designed to produce a voltage drop of 50 mV when carrying their full rated current. Ayrton shunt switching principle. To make a multi-range ammeter, a selector switch can be used to connect one of a number of shunts across the meter.

  5. Resistor - Wikipedia

    en.wikipedia.org/wiki/Resistor

    An ammeter shunt is a special type of current-sensing resistor, having four terminals and a value in milliohms or even micro-ohms. Current-measuring instruments, by themselves, can usually accept only limited currents. To measure high currents, the current passes through the shunt across which the voltage drop is measured and interpreted as ...

  6. Current sensing - Wikipedia

    en.wikipedia.org/wiki/Current_sensing

    That the voltage drop across the shunt is proportional to its current flow, i.e. ohm's law, makes the low resistance current shunt a very popular choice for current measurement system with its low cost and high reliability. Both alternating currents (AC) and direct currents (DC) can be measured with the shunt resistor.

  7. How Ayrton Senna's fatal crash at the 1994 San Marino ... - AOL

    www.aol.com/news/ayrton-sennas-fatal-crash-1994...

    F1 driver Ayrton Senna died after a crash at the San Marino Grand Prix in Imola, Italy on May 1, 1994. Senna's crash was one of two fatal accidents that occurred that weekend on the track.

  8. Get orthopedic slide-on shoes up to 50% off during Cyber Monday

    www.aol.com/lifestyle/get-orthopedic-slide-on...

    Kizik makes some of the best shoes our editors have tested for those who have arthritic feet.The Kizik Athens are easy to slide into and have the love of more than 2,500 reviewers. And during ...

  9. List of physical quantities - Wikipedia

    en.wikipedia.org/wiki/List_of_physical_quantities

    Measure of a material's ability to conduct an electric current S/m L −3 M −1 T 3 I 2: scalar Electric potential: φ: Energy required to move a unit charge through an electric field from a reference point volt (V = J/C) L 2 M T −3 I −1: extensive, scalar Electrical resistance: R: Electric potential per unit electric current ohm (Ω = V/A ...