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An electric current has three 'effects'. These are (1) heating effect, (2) chemical effect, and (3) magnetic effect.
Any one of these effects can be used to define the unit of measurement for electric current, the ampere.
Until around 1947, for example, the 'chemical effect' was used -i.e. the ampere was based on the mass of silver deposited on an electrode during electrolysis.
Since then, the 'magnetic effect' has been used -i.e. the ampere is based on the force between two current-carrying conductors, due to their surrounding magnetic fields.
What else can I help you with?
How a electric heater works 2 references?
An electric heater is a resistor that dissipates electric power when a voltage is connected across it and a current flows through it. The amount of power in watts is equal to the voltage times the current in amps. Typical space heaters for use in the home are 1.5 kW to 3 kW to heat a single room.
What are the 3 ways to measure electricity in circuit?
The three ways to measure electricity in a circuit are voltage, current, and resistance. Voltage is the measure of electrical potential difference between two points, current is the flow of electric charge in a circuit, and resistance is the opposition to the flow of current.
Name Any two effects of electric current?
1. induces magentic field around the conductor.2.Generates heat in the conductor.3. Causes shock if flows through human body.AnswerThe three 'effects' of an electric current are its heating effect, its magnetic effect, and its chemical effect.It's magnetic effect (resulting in the force between parallel conductors) is used to define the ampere.
Can I put an electric shower on a timer switch?
Most timer swiches are designed to operate with loads of up to 13 amps or 3 kW. Electric showers use around 8 kW (30-35 amps), so you would need a high-current timer.
Diagram of 3-phase electric meter base?
I'm unable to draw diagrams, but a typical 3-phase electric meter base will have three current transformers for measuring the current in each phase, and three voltage terminals for measuring the voltage across each phase. Each phase will have a connection point for the load wires coming from the main electrical panel. Additionally, there will be output terminals for connecting to the utility company's power lines.
What has the author Jeff Keljik written?
Jeff Keljik has written: 'Electricity 4' -- subject(s): Alternating current, Alternating current Electric motors, Electric controllers, Electric generators, Electric motors, Alternating current 'Electricity 3'
What 3 things do you need to have for electric current?
To have electric current, you need a source of electric potential difference (voltage), a closed circuit that allows the flow of charges, and a conductive material through which the electric charges can move.
What are 3 factors which affect the magnitude of magnetic force on current-carrying conductors?
Electric current, magnetic field intensity, length of the conductor, angle between the electric current and magnetic field
What are 3 ways to induce an electric current in a wire?
You can induce an electric current in a wire by moving a magnet near the wire, passing a current through a nearby wire, or changing the magnetic field around the wire.
What are the 3 properties of metal?
They are lustrous and malleable They conduct heat They conduct electric current
What are the 3 metallic properties?
They are lustrous and malleable They conduct heat They conduct electric current
What are the release dates for Kelsey's Essentials - 2010 On the Go 3-10?
Kelsey's Essentials - 2010 On the Go 3-10 was released on: USA: 2012
What are the 3 types of eletricity?
The three types of electricity are static electricity, current electricity (also known as electric current), and alternating current (AC) electricity. Static electricity refers to the build-up of electric charge on the surface of objects. Current electricity is the flow of electric charge through a conductor, while alternating current (AC) electricity is a type of current where the flow periodically reverses direction.
What are the release dates for Kelsey's Essentials - 2010 Butchering 3-1?
Kelsey's Essentials - 2010 Butchering 3-1 was released on: USA: 2012
What are the release dates for Kelsey's Essentials - 2010 Chocolate 3-2?
Kelsey's Essentials - 2010 Chocolate 3-2 was released on: USA: 2012
What are the release dates for Kelsey's Essentials - 2010 Take Out 3-6?
Kelsey's Essentials - 2010 Take Out 3-6 was released on: USA: 2012
If electric heater works on 115 V and draws 3 A of current how much power does it use?
The formula you are looking for is W = I x E.
