In the college entrance examination, we are in the middle and middle exams. However, more inspections, examination examination examination examination examination examination examination examination examination examination examination examines that students master the two connections and role, and do not know when they encounter problems with the effects. Essence
First, the characteristics of the connection method
变时，其限流时如图图图图所所是把滑动变变阻器串联串联中中中中中和电阻线圈的。 In the middle and middle, the regulating range of the voltage at both ends at both ends of the RX
Second, the characteristics of the connection method
When sliding and dividing, the connection is as shown in the map. The voltage voltage of the upper part of the upper part of it is sliding and sliding the resistor. Essence Its, the upper part of the RX can be divided into a stream -limited streaming limited streaming type can be changed from zero)
Third, choose the connection method selection selection
In the case of load conditions, the underwriting has advantages to select the separation circuit or the current limit circuit when the actual design requires.
(()) Selection selection of separation and pressure
1. The current current current of the circuit of the circuit of the experimental parts, large, large, large, large, large, large, or large, or the voltage voltage can be continuously adjusted from scratch.
1 Determine the Voldemort curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curve curvic voltage. For supply and supply, choose to choose from: The voltage meter voltage table selection selection is: voltage table V1 V1 V1 V1 v1 (6V, 20kΩ) (3A, internal resistance 0.2Ω e (6 ~ (8V), and and and, and and, and, and, and, and, and, and, and, and, and, and, andabized Several experimental equipment that meets the requirements and design circuits..
: Regardless of whether it is required to consider considering considering considering considering considering considering considering considering considering considering considering considering considering the angle angle, considering considering considering considering considering Anfanli circuit meets the requirements, so the circuit is used. The experimental circuit is shown in the figure as shown in the picture. Essence
Equipment: voltage meter V1, current meter current meter current meter ,,,
If the resistance value of the resistance value of the medium resistance value, or the resistance value resistance resistance value resistance resist value resistance value resistance value resistance value resistance value resistance value resistance value resistance value resistance value resistance value of the resistance value of the resistance value of the power supply momentum motor momentum is too large Dama, despite the access, the variable resistor at this time is also pressed the circuit; if the rated current of the load load resistance resistance is unclear
2 In order to determine the resistance value of a resistance value in order to use the Fu Sano Law, it is about yes: internal resistance 10kΩc. The range, the range of 0 to 0.6 to 3A, 3A, internal resistance 20Ωd D. Mohn, a range, 5mA, internal resistance 200Ωe;; several. Design experiments. Essence
: Book: In this book, 3KΩ changes are more accidental errors. The design is as shown in the graph (external method and external method and the meter….)
Example 3 Test a resistance value of a resistor RX with a votic method.提供器材有：待测电阻Rx（约5kΩ）、电压表（0～3V，内阻100kΩ）、微安表（0～500μA，内阻100Ω ），，阻器（（（（（（（，， , ((((((((((((((((((((Output output output output output output output………………………………………
Analysis: If the circuit is connected, the circuit circuit is the most: imin = e/r = 15/r = 15/(5+20) × 103A = 0.6 × 10-3A = 600 μA = 600 μA, which is greater than the circuit safety. Voltage circuit
(()) Selection selection of flow limit and current
1. Generally, the topic does not have special requirements. Due to the requirements of the requirements requirements for the advantages and advantages of advantages and advantages advantages and advantages, and energy saving, and the circuit circuit of the circuit circuit, the circuit circuit The total must be greater than greater than greater than greater than greater than greater than greater than the total total, so current current current current current current current current law.
2. If the change of large resistance is controlled, smaller load load load load load load load load load load load load load load load load load load load load, load load load load load load load load load load load guarantee guarantee guarantee guarantee load
4 In the above -mentioned graph circuit, RX is compared, RX is compared, and the larger voltage of RX is small. P is close to the B -end and approach the sliding change to a current -limited circuit.
It can be seen that if the principle of the principle of the circuit is effectively, the principle principle principles of the principles of the principles of the principle
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