# Amps can be found.

An ampere is a unit of measure used for electrical current.The measure of current is the flow of electrons through a circuit.This information can be useful if you are trying to connect a tool or appliance to the mains, which is the term used to describe the AC current that flows directly from an electric company’s generating station to your household.

### Step 1: The conversion formula is used for DC electricity.

Electric current can be found by dividing the power in watt by the V of the voltage.This is represented by the following formula.

### Step 2: Understand the power factor for AC electricity problems.

The power factor is a ratio of the real power used to do work and the apparent power supplied to an alternating current circuit, a value ranging from 0 to 1.If you divide your apparent power S by your real power P, you get power factor.

### Step 3: Find your power factor by calculating apparent power.

Apparent power can be calculated by Vrms x Irms, where S is the apparent power in VA and V is your root mean square voltage.

### Step 4: The power factor is used for single phase AC electricity.

The single phase current can be calculated by dividing the real power by the power factor and the root mean square.I(A) is represented by P(W) or V(V).

### Step 5: Make sure you know your current location.

Direct current electricity is electrical current that flows in a single direction.DC will be used if your circuit is powered by a battery.In most countries, the electricity provided by utility mains is AC current.The only way to convert AC current to DC current is through a transformer, a rectifier, and a filter.

### Step 6: Determine the path of electricity.

You will need to tie your ammeter into your circuit to take the reading.You can find the circuit path by following the positive and negative ends of your battery.

### Step 7: You can test your circuit.

Your ammeter won’t be able to gauge the current of your circuit if there is a break in the circuit or a flaw with your battery.If your circuit is functioning normally, turn it on.

### Step 8: It’s time to switch off your circuit.

The battery may need to be removed completely for some simple circuits.If you have more powerful batteries, make sure the circuit is off so you don’t get shocked.Use insulated rubber gloves if you are unsure.

### Step 9: Tie in the negative end of the ammeter.

The ammeter should have two leads, one red and one black.The red lead has a positive end and a negative one.Take the wire from the positive end of your battery and tie it to the ammeter.As electricity flows through the meter, the ammeter will measure the current and display it on the screen.

### Step 10: The ammeter has a negative lead.

You can use the black lead from your ammeter to complete the circuit you just broke.Attach the lead to the location where the wire would have fed into the circuit.

### Step 11: Turn on your circuit.

When you change your battery, your device should turn on and your ammeter should read the current in either A or mA for smaller devices.

### Step 12: Understand the concept of Ohm’s Law.

The relationship between the voltage and current of a conductor is established by the principle of Ohm’s Law.The formulas V, R, and I are used to represent the law of Ohm’s law.

### Step 13: The voltage of your circuit can be determined.

You already have part of the equation if your circuit runs on a 9-volt battery.You can find the specific voltage of the battery by checking the packaging or doing an online search.When fresh, most cylindrical batteries provide 1.5 volts.

### Step 14: You can find the resistors in your circuit.

You will need to know how much resistance is being created to the electricity flowing through your circuit.Since each circuit will be different, you will have to investigate your circuit and locate the resistors for your unique case and their resistance in Ohms.Your electricity will have resistance as well.Unless the wiring is very poorly manufactured, damaged or your circuit conducts electricity over a long distance, this will be negligible.The formula for resistance is as follows: Resistance x length

### Step 15: It is possible to apply Ohm’s Law.

To approximate the current of your circuit, you will need to divide the total voltage by each resistance, with resistance being measured in Ohms.The answer will be the current (I) in Amps (A), solved with the following calculation: V/R1 + (V/ R2), where V represents the total voltage and R represents a resistance in Ohms.