Question

how to read an ammeter

Answer 1

Look at the gauge and determine if your ammeter is a normal ammeter or a zero-center one. The zero-center ammeter will have what looks like negative and positive readings on both sides of the zero. This is actually what it does: It reads the strength of the current in both negative and positive polarities.

2
Read the gauge after the ammeter is connected to an electric circuit. How an ammeter is connected varies. A typical example might have screw connectors: Wrap the exposed leads around the positive and negative screws and tighten the screws to clamp the wires into place. With an ordinary ammeter, this connection is enough. The gauge will indicate the number of amps in the current.

3
Note both the negative and positive numbers for a zero-center ammeter. This is useful for revealing the strength of a battery within a circuit. A battery with much higher negative amperage is running on a low charge.

Answer 2

thanks but i want reading for a normal ammeter

Answer 3

i want reading of voltmeter too.

Answer 4

The ammeter can measure electrical systems. One can read an ammeter by checking to see if it is reading a positive or negative strength. Connect the ammeter to an electric circuit. Note the positive and negative numbers.

Answer 5

Before using a voltmeter you'll have to determine whether the current you're measuring is a direct current (that flows in one direction) or an alternating current (that flows back and forth). Make sure you're using a voltmeter that's compatible with the type of current you're measuring, or that your voltmeter is set to the appropriate setting. Turn the dial to select the range of voltage you're measuring . You're now ready to use your voltmeter:
1.Attach the positive input terminal lead to the positive end of the circuit (or whatever you want to measure the voltage of).
2.Attach the negative input terminal lead to the negative end of the circuit (or whatever you want to measure the voltage of).

The voltmeter will turn itself on and measure the difference between the voltage at the first point and the voltage at the second point, telling you how much voltage is traveling between the two points