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Which type of transformer is used in sonometer?
A sonometer is used to determine the frequency of alternating current. A step down transformer is used for the determination of frequency of A.C. because the voltage of the A.C. mains is 220V, which is dangerous. The step down transformer reduces this voltage to 6 volts.
What are the advantages and disadvantages of JFET over BJT?
An advantage of JFET is stable high current operation. A disadvantage of JFET is low capacitance. An advantage of BJT is constant voltage operation. A disadvantage of BJT is low thermal conductance.
Low Voltage Lighting ?
form_title= Low Voltage Lighting form_header= Create the lighting you want with low voltage light. Where are you installing low voltage lighting?*= _ [50] Will you be installing the lighting yourself?*= () Yes () No What is your lighting budget?*= _ [50]
What is the voltage range in low voltage?
In British standard voltage classified Low Voltage( up to 1000 v (1 kv) medium voltage 1001 v to 10000 v ( 1.01 kv to 10.99 kv) High voltage 11kv to 66 kv and Ehv 66.1kv and above.
How you understand which side of a transformer is high voltage side and low voltage side?
at high voltage side, current is low. hence the size of conductors is reduced or small. At low voltage side, current is high. Hence the size of conductors is large.
What is service mains in power transmission system?
A 'service mains' is not associated with an electricity 'transmission' system, but with a low-voltage 'distribution' system. The service mains is the name given to the cable that connects a building to the low-voltage mains supply.
How is low voltage derived from a mains supply?
Low voltage is derived from a mains supply using a transformer, which steps down the high voltage alternating current (AC) from the mains to a lower voltage level. The transformer operates on the principle of electromagnetic induction, where the primary winding receives the mains voltage, inducing a lower voltage in the secondary winding. Additionally, rectification may be used to convert the AC to direct current (DC) if needed for specific applications. This process ensures that the voltage is safe for use in residential and commercial electrical systems.
Where a 110V mains is not available on side what device is commonly used to provide the required reduced low voltage?
When a 110V mains supply is not available, a commonly used device to provide the required reduced low voltage is a step-down transformer. This device converts the higher voltage to a lower voltage suitable for various applications. Additionally, portable battery power supplies or DC-DC converters are also used in situations where a direct mains connection is impractical.
Advantages of SMPS over linear power supply?
1.Efficiency is high compared to linear power suplies 2.ripple voltage is very low 20mv. 3.constant regulating voltage is the one of the advantage of smps.
What is the advantage of using series parallel connection?
Series connection has only a single path through which the electron can travell,where as the parallal connection has many paths to travell the electrons.So in a serise connection if one of the component of the circuit is switched off,every other component of the circuit will be switched off. Fairy lights are usually series connected. The main voltage is divided across the number of lamps. So each individual lamp is low voltage.
Does a computer's power supply generate electricity?
In short, no. The power supply takes the alternating mains voltage and reduces it to the low voltages and direct current needed by the components of your PC.
What is advantage and disadvantage of bridge circuit over center tape circuit?
Advantages: No need of centretap transformer Low cost Disadvantages: It require 4 diodes Peak inverse voltage is high
What is Function of a power supply?
Power supplies are normally units that adapt the incoming current from a "mains" source and convert it to a lower (regulated) voltage that can be used by an appliance. They are commonly found in computers, charger units, low voltage lighting systems etc.
How can you hold 250vac to an electronic board?
use more resistances in the electronic board so that the current will be distributed........ A2 That sounds dangerous! Most electronics using semi-conductors, use low voltage DC. You will have to transform the voltage down to a suitable level and then rectify and smooth it first. Only specialist semi-conductors, such as thyristors, for mains control, can be connected directly to the mains.
What is relay driver?
A relay is an electro-magnetic switch which is useful if you want to use a low voltage circuit to switch on and off a light bulb (or anything else) connected to the 220v mains supply.
Which type of transformer is used in sonometer?
A sonometer is used to determine the frequency of alternating current. A step down transformer is used for the determination of frequency of A.C. because the voltage of the A.C. mains is 220V, which is dangerous. The step down transformer reduces this voltage to 6 volts.
What are the advantages and disadvantages of JFET over BJT?
An advantage of JFET is stable high current operation. A disadvantage of JFET is low capacitance. An advantage of BJT is constant voltage operation. A disadvantage of BJT is low thermal conductance.
