Alternating current ch-7 class 12 physics pdf notes ,class 12 physics chapter 7 alternating current revision notes pdf by blue sky pcm
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Topics covered in this ---- Alternating current, q--- why AC is used in practice? properties of AC , alternating emf, alternating voltage,mean value of AC , average value of AC, root mean square value of AC , rms value of alternating current, phasors diagram,graphical representation of some AC . rms value of AC , Circuit elements, resistor, inductor, capacitor, resistance, capacitance, inductance. inductive reactance, capacitive reactance. impedance,admittance. different types of AC Circuit. 1- ckt contains resistance only.resistor 2- ckt contains capacitor only. 3- ckt contains inductor only. graph, results,ckt diagram,wave forms. class 12 physics chapter 7 quick revision notes pdf . Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction. Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances, televisions, fans and electric lamps into a wall socket. A common source of DC power is a battery cell in a flashlight. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage. The usual waveform of alternating current in most electric power circuits is a sine wave, whose positive half-period corresponds with positive direction of the current and vice versa. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information such as sound (audio) or images (video) sometimes carried by modulation of an AC carrier signal. These currents typically alternate at higher frequencies than those used in power transmission. AC revision class 12. physics revision video class 12 physics class 12 revision. Electrical energy is distributed as alternating current because AC voltage may be increased or decreased with a transformer. This allows the power to be transmitted through power lines efficiently at high voltage, which reduces the energy lost as heat due to resistance of the wire, and transformed to a lower, safer, voltage for use. Use of a higher voltage leads to significantly more efficient transmission of power. The power losses in the wire are a product of the square of the current (I) and the resistance (R) of the wire
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PDF NOTES-download pdf
Topics covered in this ---- Alternating current, q--- why AC is used in practice? properties of AC , alternating emf, alternating voltage,mean value of AC , average value of AC, root mean square value of AC , rms value of alternating current, phasors diagram,graphical representation of some AC . rms value of AC , Circuit elements, resistor, inductor, capacitor, resistance, capacitance, inductance. inductive reactance, capacitive reactance. impedance,admittance. different types of AC Circuit. 1- ckt contains resistance only.resistor 2- ckt contains capacitor only. 3- ckt contains inductor only. graph, results,ckt diagram,wave forms. class 12 physics chapter 7 quick revision notes pdf . Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction. Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances, televisions, fans and electric lamps into a wall socket. A common source of DC power is a battery cell in a flashlight. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage. The usual waveform of alternating current in most electric power circuits is a sine wave, whose positive half-period corresponds with positive direction of the current and vice versa. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information such as sound (audio) or images (video) sometimes carried by modulation of an AC carrier signal. These currents typically alternate at higher frequencies than those used in power transmission. AC revision class 12. physics revision video class 12 physics class 12 revision. Electrical energy is distributed as alternating current because AC voltage may be increased or decreased with a transformer. This allows the power to be transmitted through power lines efficiently at high voltage, which reduces the energy lost as heat due to resistance of the wire, and transformed to a lower, safer, voltage for use. Use of a higher voltage leads to significantly more efficient transmission of power. The power losses in the wire are a product of the square of the current (I) and the resistance (R) of the wire
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