What is the French and Raven theory?
French and Raven defined social power as the potential for influence (a change in the belief, attitude or behavior of a someone who is the target of influence. As we know leadership and power are closely linked. This model shows how the different forms of power affect one’s leadership and success.
Which bases of power are most effective?
If the three bases of formal power (coercive, rewards, legitimate) and two bases of personal power (expert, referent), which is most important to have? Interestingly, research suggests pretty clearly that the personal sources of power are most effective.
Which one of the following is not a type of power according to French and Raven?
The correct option is: B) Authority There are five bases of power introduced by French and Raven which are: Coercive power.
Which bases of power are more effective Why?
Of the three bases of formal power and two bases of personal power research suggests that personal power sources are most effective. Both expert power and referent power are positively related to employees’ satisfaction with supervision, their organisational commitment and their performance.
What are the two types of power sources?
Introduction to Major Energy Sources Energy sources can be classified into two types: nonrenewable and renewable. Nonrenewable resources, such as fossil fuels and nuclear material, are removed from the earth and can be depleted.
What are the 3 types of power supply?
There are three subsets of regulated power supplies: linear, switched, and battery-based. Of the three basic regulated power supply designs, linear is the least complicated system, but switched and battery power have their advantages.
What are the 4 primary components of a power supply?
Most power supplies are made up of four basic sections: a TRANSFORMER, a RECTIFIER, a FILTER, and a REGULATOR.
Does it matter what power supply I get?
Choosing the more efficient power supply will save some cash on your monthly power bill. At the same time, a power supply with a higher efficiency rating will allow your PC to run cooler as well. Every PC component generates some heat, and that tends to work against top performance.
What is common power supply?
The most common power supply comprises a single-phase a.c. transformer, see Figure 10.49. This converts the mains supply primary voltage to a low (2–20 V) secondary welding voltage. The maximum allowed current on the primary side of the transformer at 50% duty cycle is then the kVA rating divided by the mains voltage.
What is the problem of power supply?
Power supply problems are caused by various sources, for example distribution network faults, system switching, weather and environmental conditions, heavy plant and equipment or simply just faulty hardware.
What is power supply and its types?
The power supply unit is the part of the hardware that is used to convert the power provided from the outlet into usable power to many parts inside an electrical device. Every energy supply must drive its load, which is connected to it. There are two types of power supplies existed, AC and DC power supply.
What uses a 12V power supply?
All of the power supplies we sell are 12V DC. They take any input from 100V up to 220V AC, which is what comes out of your wall socket, and output 12V DC. This is what most digital devices such as LCD screens, DVD players, Hard Drives, Audio Gear, and most other digital devices use.
What are the basic components of DC power supply?
From the block diagram, the basic power supply is constituted by four elements viz a transformer, a rectifier, a filter, and a regulator put together. The output of the dc power supply is used to provide a constant dc voltage across the load.
What is a fixed power supply?
A fixed output power supply has, well, a fixed output voltage. This means that when the power supply is plugged in and the output is on, the output voltage is a single voltage that is not expected to change – it is fixed at that voltage. These power supplies are typically used to provide simple bias for a circuit.
What is the function of a DC power supply?
DC Power Supplies Information. DC power supplies are power supplies which produce an output DC voltage. Power supplies are devices that deliver electric power to one or several loads. They generate the output power by converting an input signal into an output signal (in this case, a DC output).
What is a DC switching power supply?
A Switching DC power supply (also known as switch mode power supply) regulates the output voltage through a process called pulse width modulation (PWM). The PWM process generates some high frequency noise, but enables the switching power supplies to be built with very high power efficiency and small form factor.
How do you create a variable for a DC power supply?
Variable Power Supply Circuit from Fixed Voltage Regulator
- Bridge rectifier is used fr converting AC to DC.
- Then the voltage is applied to the 7805 voltage regulator.
- Output of the regulator can be varied by varying the resistance connected to the common pin of the 7805.
When a power supply is called regulated power supply?
In fancy electrical terms, a regulated power supply provides a constant output voltage, independent of the output current. A regulated power supply with multiple regulators can offer multiple output voltages for operating different devices.
When load current is zero the zener current will be?
Answer. Answer: When load current is zero, the zener current will be 0.
What is the function of filter circuit in a power supply?
The filtering stage of a power supply circuit smoothes out the ripples in the rectified DC to produce a smooth direct current that’s suitable for even the most sensitive of circuits. Filtering is usually accomplished by introducing a capacitor into the power supply circuit.