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What can't we use step-up transformer to increase the voltage by producing electricity of lower voltage?
Wiki User
∙ 13y ago
This question is not understandable. You can use a step up transformer to increase voltage; you can't increase voltage by producing electricity at a lower voltage; this will result in current flow into your generator, not current flow out (similar to operating a generator in the leading mode).
Please explain further under "discuss question".
Wiki User
∙ 13y ago
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What is an electrical device that changes the voltage of electricity through the use of two sets of coils.?
The electrical device is a transformer.
How does a transformer increase voltage?
Their not real...but mermaids are. P.S I'm a girl
Do the induced voltage increase in a transformer when the magnetic field strength increase?
Yes, the more voltage you put in the more you get out. If the transformer is a 2 - 1 ratio and you put 240 in you get 120 out and when you put 480 in you get 240 out. Magnetic field strength and voltage have a direct relationship. +++ The field strength is actually a function of current, although as you say, increasing the voltage will increase the current hence the magnetic field.
What do you mean by tapping of transformer?
'Tappings' are externally-accessible electrical connections to the turns of a transformer's (usually high-voltage) winding. This enables the number of turns to be changed, resulting in a change to the transformer's turns ratio and, therefore, to its voltage ratio. Tap changing enables the electricity network company to adjust the turns ratio in response to any excessive voltage reduction resulting from a heavy load.
Why secondary terminal voltage decreases with increase in load?
An increase in load (equivalent to a decrease in resistance*) causes an increase in load current. This increases the internal voltage drop within the transformer, and the terminal voltage reduces accordingly.[*An increase in load means more current is being drawn by that load, so an increase in load is equivalent to a decrease in load resistance]
How do a transformer work and why they are necessary?
A transformer is an electrical device that takes electricity of one voltage and changes it into another voltage.
A transformer can increase or deacrease what?
Voltage and current.
A transformer can only the voltage of an alternating current?
A transformer can only increase or decrease the voltage of an alternating current, and it is called step-up transformer or step-down transformer accordingly.
If a step-up transformer is to increase voltage it needs?
A step-up transformer needs more turns on the secondary windings than on the primary windings to increase the voltage.
What is the main purpose of a transformer?
step up transformer output gives the high voltage which is useful for transmiission of electricity
What is the name of the component that is used to increase or decrease alternating voltage?
A transformer is used to increase or decrease alternating voltage.
Why transformers were made?
A transformer is an electrical device that takes electricity of one voltage and changes it into another voltage. You'll see transformers at the top of utility poles and even changing the voltage in a toy train set.A transformer changes electricity from high to low voltage using two properties of electricity.
How does electricity change from one transformer to another?
voltage gets smaller
What device is used to increase or decrease the voltage of an alternating current?
A transformer is the device used to increase or decrease the voltage of alternating current (AC) This is done through a process referred to as inducing.It's operation is based on the fact that electricity produces a magnetic field around itself. By placing 2 coils of cable beside each other, the magnetic field of one coil will induce a voltage in the other coil.
What type of device is used to increase or decrease the voltage of an electric current?
The device used to increase or decrease the voltage of an electric circuit is a step up transformer or a step down transformer respectively. A Variable Resistor
How do you solve low voltage in electricity problems?
low voltage problem may arise due to unbalancing of distribution transformer in your area. please ask your electricity provider to balance load on distribution transformer.
Why don't we use a step up transformers when we are in electricity deficiency?
By 'electricity deficiency', presumably, you mean 'energy deficiency'? If so, then a transformer does not provide energy; it merely changes voltage levels. When it increases a voltage, it doesn't increase the amount of energy supplied.
