10 A student investigates how the resistance of a piece of wire changes with voltage across the wire.The student connects an ammeter, a voltmeter, a battery, a variable resistor and the wire in an electrical circuit.(a)(i) Complete the diagram to show how the student should connect the ci...
Though the process of using a digital multimeter to measure current is fairly simple, it’s slightly more difficult than using a digital multimeter to measure voltage or resistance. That’s because to measure current, you need to break the circuit and connect your digital multimeter (DMM) to ...
Intro Lab - How to Use an Ammeter to Measure Current Intro Lab - Ohm’s Law Intro Lab - Resistor Power Dissipation Intro Lab - A Simple Lighting Circuit Intro Lab - Nonlinear Resistance Intro Lab - Circuit With a Switch Intro Lab - Build an Electromagnet ...
When a multimeter is used as an ammeter, it will measure the amount of current that passes across the circuit being tested. In order to use the device in this manner, the multimeter has to be connected in series with the circuit in order to measure the amperage of the electricity passing ...
a single instrument can perform all three tasks, acting as a voltmeter, ammeter and an ohmmeter. This instrument is known as a multimeter and has a switch that makes it possible to change the parameter being measured. There are two types of multimeters — analogue and digital — and the ins...
A multimeter is a measurement tool absolutely necessary in electronics. It combines three essential features: a voltmeter, ohmeter, and ammeter, and in some cases continuity. A multimeter allows you to understand what is going on in your circuits. Whenever something in your circuit isn’t working...
aObtain three 30cm lengths of nichrome wire.Connect an ammeter,one piece of nichrome wire,a battery,and a switch in series,as shown.Record the reading on the ammeter 得到镍铬合金导线的三30cm长度。连接一个镍铬合金导线安倍计、一件,一个电池和一个开关在系列,如所示。记录读书在安倍计 [translate]...
Connect an adjustable DC power supply, negative to the ground and positive to the BNC center pin. Also connect a DC volt meter across here. Turn the potentiometer all the way to one end. Adjust the power supply to drive the meter to the 20 different levels on its scale: 0.05 mA, ...
aObtain three 30cm lengths of nichrome wire.Connect an ammeter,one piece of nichrome wire,a battery,and a switch in series,as shown.Record the reading on the ammeter 得到镍铬合金导线的三30cm长度。连接一个镍铬合金导线安倍计、一件,一个电池和一个开关在系列,如所示。记录读书在安倍计[translate] ...
Unlike direct current, alternating current (AC) does not find many applications in low-voltage electronics. It is the reason many multimeters do not feature an AC ammeter. But for those that do, measuring AC is a similar process as DC; the rotary dial needs to be set to AC, though. ...