Convert Ampere to Milliampere

An Ampere (symbol: A) is the base unit of electric current in the International System of Units (SI). It measures the amount of electric charge flowing through a conductor in a given time, typically one second.

• Electric Current: Electric current is the flow of electric charge (usually carried by electrons) through a conductor, like a wire. The ampere quantifies how much charge is moving.

• 1 Ampere: One ampere represents the flow of one coulomb of charge per second. A coulomb is a large quantity of charge, roughly equal to the charge carried by 6.242 × 10¹⁸ electrons.

• Household Appliances: Common household devices, like a light bulb or a refrigerator, typically operate on currents measured in amperes. For example, a standard 60-watt light bulb might draw around 0.5 to 1 ampere of current.

• Electric Circuits: In a simple electric circuit, if the current is 1 ampere, it means that a substantial amount of electric charge is flowing through the circuit every second.

• Batteries and Power Supplies: The current supplied by a battery or power supply is often expressed in amperes, indicating how much electric charge it can deliver to a circuit or device.

• Milliamperes (mA) and Microamperes (µA): These are smaller units derived from the ampere. 1,000 milliamperes (mA) make up 1 ampere, and 1,000,000 microamperes (µA) make up 1 ampere. These are used to measure smaller currents.

• Voltage and Resistance: The ampere is also related to voltage and resistance through Ohm's Law, which states that current (in amperes) equals voltage (in volts) divided by resistance (in ohms).

An ampere is the fundamental unit for measuring electric current, representing the amount of electric charge flowing per second through a conductor. It is a key concept in understanding how electricity works, from powering household devices to complex electronic circuits.

A Milliampere (symbol: mA) is a unit of electric current used to measure the flow of electric charge in a circuit. It is a subunit of the ampere (A), which is the standard unit of electric current in the International System of Units (SI).

1. "Milli": The prefix "milli" means one-thousandth (1/1,000) of the base unit. So, 1 milliampere is equal to 0.001 amperes.

2. "Ampere": An ampere (A) is the base unit for measuring electric current. It represents the amount of electric charge flowing through a conductor per second.

• 1 mA = 0.001 A: This means that a milliampere is a smaller unit of current, one-thousandth of an ampere. It is used to measure currents that are more substantial than microamperes but still much smaller than those typically used in household appliances.

• Practical Examples:

  • Batteries: Small batteries, like those in smartphones or remote controls, often supply currents in the milliampere range.
  • LEDs: Light-emitting diodes (LEDs) usually operate with currents of about 10 to 20 milliamperes to produce light.
  • Portable Devices: Many portable electronic devices, such as wearables, operate with currents in the milliampere range to extend battery life.

A milliampere is a unit of electric current that is one-thousandth of an ampere. It is commonly used to measure small to moderate currents in various electronic devices and circuits, where the current is more substantial than microamperes but still smaller than the currents used in larger electrical appliances.