AM.I.A.S11
SkillMeasure voltage drop across a resistor.
From the FAA library
- Chapter 12: Fundamentals of Electricity & Electronics › Basic Circuit Analysis & Troubleshooting › Tracing Opens with the Voltmeter
lamp, but because of the open resistor, the lamp will not light. To locate this open, a voltmeter or an ohmmeter should be used. Figure 12-170. Current, voltage, and resistance measurement. Tracing Opens with the Voltmeter A general procedure ... measure the voltage drop across each component in the circuit, keeping in mind the following points. If there is an open in a series circuit, then the voltage drops on sides of the component. In this case, the total voltage…
- Chapter 12: Fundamentals of Electricity & Electronics › DC Measuring Instruments › Current Sensitivity and Resistance
meter movement. To illustrate this, assume that the 1 mA meter in question is needed to measure 10 mA. The shunt resistor used should carry 9 mA while the remaining 1 mA is allowed to pass through the meter. [Figure ... Meter resistance = 50 Ω Because the shunt resistance and the 50 Ω meter resistance are in parallel, the voltage drop across both of them is the same. ESH = EM Using Ohm’s Law, this relationship can be rewritten…
- Chapter 12: Fundamentals of Electricity & Electronics › The Voltmeter
voltage drop across the meter coil is a function of current and the coil resistance. In another example, 50 μA × 1,000 Ω = 50 mV. In order for the meter to be used to measure voltages greater than ... there must be added a series resistance to drop any excess voltage greater than that which the meter movement requires for a full-scale deflection. The case of the voltmeter, this resistance is called multiplier resistance and is designated…