What is the difference between WATT and VOLT-AMP?
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Let's consider the difference between watts and volt-amperes. These parameters of an electric circuit often mislead novice electronics engineers, because the product of electric current and voltage gives us watts, but also volt-amperes. The latter parameter is typical only for alternating current circuits, since they are affected by the action of inductance and capacitance, which are consumers of reactive power. Direct current electric circuits are characterized only by active power, so here electric power is measured in watts. In alternating current circuits, active power is a certain part of the total power. This share is determined by the presence of inductances and capacitances, as well as their relationship. It is the total power that is measured in volt-amperes and is equal to the product of volts and amperes. Reactive power is measured in var, volt-ampere reactants. The relationship between total, active and reactive power can be determined through the power factor. 1. What is alternating current: • Lesson 25. What is alternating current P... 2. What is a phase, phase shift: • Lesson 26. What is Phase and Phase Shift 3. Inductor, capacitor, resistor: • Resistor, capacitor, inductor... 4. What is cosine phi or power factor: • Power factor in simple words Kits of electronic components for experiments of beginner electronics engineers: Get a high DISCOUNT on the purchase of ALL products: http://ali.pub/3mwkwb Breadboard: http://ali.pub/3mtvcu Convenient breadboard: http://ali.pub/3mtvyt Serious breadboard: http://ali.pub/3mtx4m Flexible jumpers for breadboard: http://ali.pub/3mtxj0 Jumpers in a case 14 types 140 pieces: http://ali.pub/3mtxtw Set of resistors 600 pieces, 30 denominations of 20 pieces: http://ali.pub/3muaey Transistor kit: http://ali.pub/3muc1h Buy a good multimeter: RM113D http://ali.pub/3mn1ru Buy a simple multimeter: DT830B http://ali.pub/3mn8qo Digital dual-channel signal generator DDS: http://ali.pub/4c2hf7 Serious digital signal generator UNI-T UTG962: http://ali.pub/4c2hx3 Oscilloscope Hantek DSO5202P: http://ali.pub/3rey34 Soldering iron with adjustable temperature CXG 936d: http://ali.pub/4c2kuh #power #watt #electronicsclub
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