What is the unit of voltage?
Ampere
Coulomb
Volt
Ohm
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Units of Voltage
Units of Voltage
What is Voltage?
Formula of Voltage
The formula for voltage (V) is:
Where: 𝑉represents voltage (in volts, V)
𝑊 represents the work done or energy transferred (in joules, J)
𝑄 represents the electric charge (in coulombs, C)
What are the Units of Voltage?
Voltage is measured in volts (V), representing electrical potential difference. It determines the flow of electric current in circuits. Common units include millivolts (mV) and kilovolts (kV). Voltage is essential in powering electrical devices and systems.
SI units of Voltage
CGS units of Voltage
List of Units of Voltage
| Unit | Symbol |
|---|---|
| Volt | V |
| Millivolt | mV |
| Microvolt | μV |
| Kilovolt | kV |
| Megavolt | MV |
| Gigavolt | GV |
| Picovolt | pV |
| Nanovolt | nV |
| Statvolt | statV |
- Volt (V): The volt is the SI unit of voltage, representing the electrical potential difference between two points in a circuit. It is commonly used in electrical engineering and electronics.
- Millivolt (mV): The millivolt is equal to one thousandth of a volt (0.001 V). It is often used in low-voltage applications such as sensors and small electronic devices.
- Microvolt (μV): The microvolt is equal to one millionth of a volt (0.000001 V). It is used to measure very small voltages, such as those generated by biomedical sensors or in precision instrumentation.
- Kilovolt (kV): The kilovolt is equal to one thousand volts (1000 V). It is commonly used in high-voltage applications such as power distribution systems and electrical transmission lines.
- Megavolt (MV): The megavolt is equal to one million volts (1,000,000 V). It is used in extremely high-voltage applications such as large-scale power generation and industrial machinery.
- Gigavolt (GV): The gigavolt is equal to one billion volts (1,000,000,000 V). It is used in specialized fields such as particle accelerators and high-energy physics experiments.
- Picovolt (pV): The picovolt is equal to one trillionth of a volt (0.000000000001 V). It is used in extremely sensitive measurements, such as those in atomic force microscopy and quantum mechanics experiments.
- Nanovolt (nV): The nanovolt is equal to one billionth of a volt (0.000000001 V). It is used in very low-level voltage measurements, such as those in thermocouples and electronic noise analysis.
- Statvolt (statV): The statvolt is a unit of voltage in the CGS (Centimeter-Gram-Second) system. It is used in some scientific and engineering contexts, particularly in electrostatics and plasma physics.
Conversion of units of Voltage
| From Unit | To Unit | Conversion Formula |
|---|---|---|
| Volt (V) | Millivolt (mV) | millivolts = volts × 1000 |
| Millivolt (mV) | Volt (V) | volts = millivolts / 1000 |
| Volt (V) | Kilovolt (kV) | kilovolts = volts / 1000 |
| Kilovolt (kV) | Volt (V) | volts = kilovolts × 1000 |
| Volt (V) | Megavolt (MV) | megavolts = volts / 1,000,000 |
| Megavolt (MV) | Volt (V) | volts = megavolts × 1,000,000 |
Volt (V) to Millivolt (mV):
- To convert volts to millivolts, multiply the voltage value by 1000.
Millivolt (mV) to Volt (V):
- To convert millivolts to volts, divide the voltage value by 1000.
Volt (V) to Kilovolt (kV):
- To convert volts to kilovolts, divide the voltage value by 1000.
Kilovolt (kV) to Volt (V):
- To convert kilovolts to volts, multiply the voltage value by 1000.
Volt (V) to Megavolt (MV):
- To convert volts to megavolts, divide the voltage value by 1,000,000.
Megavolt (MV) to Volt (V):
To convert megavolts to volts, multiply the voltage value by 1,000,000.
FAQ’s
What is 1 volt equal to?
One volt is equal to the electrical potential difference between two points when one joule of energy is transferred per coulomb of charge moved between those points.
What are the 4 basic units of electricity?
The four basic units of electricity are voltage (volts), current (amperes), resistance (ohms), and power (watts). These units are fundamental in electrical calculations and circuit analysis.
What is another term used for voltage?
Another term used for voltage is electric potential difference, which represents the energy per unit charge required to move a charge between two points in an electric field. Voltage is also sometimes referred to as electromotive force (EMF).
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Practice Test
Which of the following represents 1 volt?
1 joule per coulomb
1 watt per ampere
1 coulomb per second
1 ampere per ohm
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How is the potential difference measured?
Using an ammeter
Using a voltmeter
Using an ohmmeter
Using a wattmeter
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What is the unit of electromotive force (emf)?
Volt
Ampere
Watt
Ohm
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Which device converts mechanical energy to electrical energy and generates voltage?
Transformer
Battery
Generator
Resistor
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If a battery provides a voltage of 12 V, what is the potential difference across its terminals?
6 V
12 V
24 V
36 V
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Which of the following represents millivolts?
mA
mV
mΩ
mW
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What is the voltage across a resistor if a current of 2 A flows through it and its resistance is 5 Ω?
2.5 V
5 V
10 V
15 V
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Which of the following instruments is used to measure voltage in a circuit?
Galvanometer
Ammeter
Voltmeter
Thermometer
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What is the SI unit for voltage?
Volt
Ampere
Ohm
Coulomb
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