answersLogoWhite

0


Best Answer

A voltmeter uses the principle of Ohm's law, which states simply that the amount of current that flows in a circuit is equal to the voltage applied divided by the resistance of the circuit. Therefore, if one were to connect a known resistance in series with a meter across a voltage source, then the meter deflection would be proportional to the current flow and hence the voltage. The meter is calibrated in volts so that the test voltage can be read directly. The meter used in a voltmeter is very sensitive, typically 50 micro-amperes so that it does not affect the reading by its load on the circuit.

Pizza is good when volts don't go thru!!

User Avatar

Wiki User

10y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

13y ago

The electromotive force between two points in the circuit is measured by a voltmeter.

The current past any point in the circuit is measured by an ammeter inserted at that point.

The resistance between any two points in the circuit is measured by an ohmmeter.

The power dissipated by the circuit is measured by a wattmeter or a power meter.

The energy dissipated by the circuit is measured by a watt-hour meter.

The frequency of the current at a point in the circuit can be measured with an oscilloscope

or a frequency counter.

This answer is:
User Avatar

User Avatar

Wiki User

12y ago

You simply place a voltmeter across the load. That will give you voltage drop.

Just be careful to use the correct voltmeter and take appropriate safety precautions to prevent electrocution and/or damage. Also, note that placing a meter across a load might elevate the ground lead potential on the meter, so you do not want to have the meter grounded in any way.

This answer is:
User Avatar

User Avatar

Wiki User

13y ago

Use a voltmeter

This answer is:
User Avatar

User Avatar

Wiki User

12y ago

you eat pie

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you measure voltage in an electrical circuit?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about General Science

In an electrical circuit a voltage difference is?

Volt difference causes a short circuit! ChaCha


What is the Difference between network and circuit?

An electrical network is an interconnection of electrical components (e.g. batteries, resistors, inductors, capacitors, switches) or a model of such an interconnection, consisting of electrical elements (e.g. voltage sources, current sources, resistances, inductances, capacitances). An electrical circuit is a network consisting of a closed loop, giving a return path for the current.An electric circuit is a path in which electrons from a voltage or current source flow. Electric current flows in a closed path called an electric circuit. The point where those electrons enter an electrical circuit is called the "source" of electrons. The point where the electrons leave an electrical circuit is called the "return" or "earth ground". The exit point is called the "return" because electrons always end up at the source when they complete the path of an electrical circuit. The part of an electrical circuit that is between the electrons' starting point and the point where they return to the source is called an electrical circuit's "load". The load of an electrical circuit may be as simple as those that power electrical appliances like refrigerators, televisions, or lamps or more complicated, such as the load on the output of a hydroelectric power generating station.


A testing instrument that's used to measure electrical signals in a circuit and display them as waveforms on a screen is called?

an oscilloscope


What are two things required to make electric current flow in a circuit?

you need an electrical supply and a load. nice and simple.


What is the measure of energy consumed by a circuit?

voltage- apex :))

Related questions

What measure of electrical energy transfers by electrons in a circuit?

Voltage


What you measure voltage into?

You measure voltage using a voltmeter which involves measuring the electrical potential difference between 2 points in an electrical circuit.


Why does voltage matter?

Voltage is a measure of electrical potential. I understood voltage best when my first semester Electronics professor told the class that voltage is to an electrical circuit as water pressure is to a plumbing "circuit".


What is the function of a voltmeter in an electrical circuit?

To measure Voltage which is the force pushing current :)


What does volt measure?

Voltage measures the electrical potential between two parts of an electrical circuit. Also called electromotive force. Voltage provides the 'pressure' to drive electrons round a circuit.


What is a volt metter?

A volt meter is used to detect the presence of voltage, and it also measure the amount of voltage (electrical pressure) in a circuit.


What is a short to voltage?

what is short to voltage in a car electrical circuit & how to check it ?


How do you measure the voltage in a circuit?

by voltmeter


What instrument measures electrical earth resistance?

A multimeter device can measure resistance, current, AC/DC voltage, and it also can determine continuity on an electrical circuit, and its range for current, voltage and resistance is widely variable.


Why is a voltage regulator important?

To protect voltage sensitive components of an electrical circuit.


What is a use of a voltmeter?

A voltmeter is used to measure the difference in electric potential ("voltage") between two points, usually but not necessarily in an electrical circuit..


What is the use of voltmeters?

A voltmeter is used to measure the difference in electric potential ("voltage") between two points, usually but not necessarily in an electrical circuit..