Electricity can flow either as direct or alternating current, and is used in homes to power electrical appliances. The National Grid distributes electricity throughout the country.On a voltage-time graph this would appear as a straight horizontal line at a constant voltage.Car batteries, dry cells and solar cells all provide a direct current (dc) that only flows in one direction.An alternating current regularly changes direction.On a voltage-time graph, this would appear as a curve alternating between positive and negative voltages. For safety, the fuse wire used in the mains for household supply of electricity must be made of metal havinga)low melting pointb)high resistancec)high melting pointd)low specific heatCorrect answer is option 'A'. Mains electricity Electricity can flow either as direct or alternating current, and is used in homes to power electrical appliances. Can you explain this answer? The positive and negative values indicate the direction of current flow.
Power stations sometimes produce electricity using magnets. A current of 8 A flows through the heater.
This provides an alternating current (ac). curriculum-key-fact The mains supply in the UK is an alternating current (ac) voltage at a … In the Australia the current changes direction every 1/100th of a second.
| EduRev Current Affairs Question is disucussed on EduRev Study Group by 128 Current Affairs Students. Mains electricity is supplied as alternating current (a.c.) Alternating current a.c. is one which is constantly changing i.e. In the UK, the of 50 Hertz (Hz) and is delivered to houses at 230 Volts (V).
Mains electricity refers to the power that is brought into people's homes. Learn about and revise mains electricity, current and the role of the National Grid with this GCSE Bitesize Combined Science. An electric heater is connected to the 230 V mains supply. Electricity can flow either as direct or alternating current, and is used in homes to power electrical appliances.
In the UK, the of 50 Hertz (Hz) and is delivered to houses at 230 Volts (V). Mains electricity is the term used to refer to the electricity supply from power stations to households. Mains electricity (as it is known in the UK and some parts of Canada; US terms include utility power, power grid, domestic power and wall power; in much of Canada it is known as hydro) is the general-purpose alternating-current (AC) electric power supply. The positive and negative values indicate the direction of current flow. supply.
the current flows in one direction and then in the opposite direction, again and again (continuously). The National Grid distributes electricity throughout the country.
The National Grid distributes electricity throughout the country.On a voltage-time graph this would appear as a straight horizontal line at a constant voltage.Car batteries, dry cells and solar cells all provide a direct current (dc) that only flows in one direction.An alternating current regularly changes direction.On a voltage-time graph, this would appear as a curve alternating between positive and negative voltages. Power stations sometimes produce electricity using magnets. Electricity can flow either as direct or alternating current, and is used in homes to power electrical appliances. Learn about and revise mains electricity, current and the role of the National Grid with this GCSE Bitesize Combined Science. This provides an alternating current (ac). Mains Electricity The electricity supplied to our homes is called Mains Electricity.It is an alternating current supply.
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