Ohm's law states that the current is directly proportional to the electrical pressure and is inversely proportional to the circuit resistance. To state this relationship in a formula, we can say the electrical current is equal to the electrical pressure, divided by the resistance. To give you a more simplified version of this formula, we can say that amperage is equal to voltage, divided by ohms.
Though the ohm's law, we have a formula that we can use to compute for the amperage and wattage of a device by using a meter. The meter that we will use for our computation is the multimeter.
You should turn off the power supply in the device's circuit first. Then you will use the multimeter. Set your multimeter to the resistance setting. The Greek letter of omega is the symbol used for this setting.
Now you will place the tip of the multimeters negative probe to one of the device's terminal and put the positive probe of the multimeter to the opposite terminal. The multimeter will then have some readout. This readout is the value of the resistance expressed in ohms.
You will now measure the voltage of the equipment. You need to set the multimeter to the voltage setting. Before you start measuring the voltage, you must first determine how is the device being powered. If this device uses battery, dynamo, solar cell, solar panel, or transformer, then you have to put the multimeter's voltage to direct current or DC. If the device uses an outlet or generator, set the multimeter voltage to alternating current or AC.
After figuring out what is the device's power source, you must now turn on the appliance's circuit. You have to put the multimeter's positive probe to the power supply's positive terminal and the negative probe to the power supply's negative terminal. The read out on the multimeter is the value of the electrical pressure expressed in volts.
We now have to solve for the value of the amperage. By using ohm's law we will compute for the value of the amperage using the read out of the multimeter. Volts divided by ohms equal to amperage or the total power which the equipment uses.
To compute for the value of the wattage, we will just multiply the amount of the amperage to the value of the voltage. The resulting product of these values is the wattage which is the energy requirement of the device. That is how we compute for the values of amperage and wattage by using a meter. You can now use this information for future reference.
Though the ohm's law, we have a formula that we can use to compute for the amperage and wattage of a device by using a meter. The meter that we will use for our computation is the multimeter.
You should turn off the power supply in the device's circuit first. Then you will use the multimeter. Set your multimeter to the resistance setting. The Greek letter of omega is the symbol used for this setting.
Now you will place the tip of the multimeters negative probe to one of the device's terminal and put the positive probe of the multimeter to the opposite terminal. The multimeter will then have some readout. This readout is the value of the resistance expressed in ohms.
You will now measure the voltage of the equipment. You need to set the multimeter to the voltage setting. Before you start measuring the voltage, you must first determine how is the device being powered. If this device uses battery, dynamo, solar cell, solar panel, or transformer, then you have to put the multimeter's voltage to direct current or DC. If the device uses an outlet or generator, set the multimeter voltage to alternating current or AC.
After figuring out what is the device's power source, you must now turn on the appliance's circuit. You have to put the multimeter's positive probe to the power supply's positive terminal and the negative probe to the power supply's negative terminal. The read out on the multimeter is the value of the electrical pressure expressed in volts.
We now have to solve for the value of the amperage. By using ohm's law we will compute for the value of the amperage using the read out of the multimeter. Volts divided by ohms equal to amperage or the total power which the equipment uses.
To compute for the value of the wattage, we will just multiply the amount of the amperage to the value of the voltage. The resulting product of these values is the wattage which is the energy requirement of the device. That is how we compute for the values of amperage and wattage by using a meter. You can now use this information for future reference.
About the Author:
Waldron Electric Heating & Cooling about not enough amps & volts capacity in a building.
No comments:
Post a Comment