Tutorial Number 01 file
... resistance of 20Ω and an inductance of 0.1 H. derive expression for the r.m.s values of the voltage and current phasors in a.) Rectangular notation, b.) Polar notation. Draw the phasor diagram. 4. Define the r.m.s value, peak value and average value of an alternating current. Explain why r.m.s value ...
... resistance of 20Ω and an inductance of 0.1 H. derive expression for the r.m.s values of the voltage and current phasors in a.) Rectangular notation, b.) Polar notation. Draw the phasor diagram. 4. Define the r.m.s value, peak value and average value of an alternating current. Explain why r.m.s value ...
9 – The Power MOSFET 3
... are shown in Fig. 4.19. For t > t1 with vGS > VTh, the device starts conducting and its drain current is given as a function of vGS and VTh. In fact iD starts flowing exponentially from zero as shown in Fig. 4.19d. As long as iD(t)
... are shown in Fig. 4.19. For t > t1 with vGS > VTh, the device starts conducting and its drain current is given as a function of vGS and VTh. In fact iD starts flowing exponentially from zero as shown in Fig. 4.19d. As long as iD(t)
Kirchhoff`s Laws Review A more complex circuit …
... is a 5 V voltage rise from b to a is a -5 V voltage rise from a to b ØThere is a -5 V voltage drop from b to a ØThere ØThere ...
... is a 5 V voltage rise from b to a is a -5 V voltage rise from a to b ØThere is a -5 V voltage drop from b to a ØThere ØThere ...
Chapter 17: Introduction to Electricity
... (a substance in which charges can roam), e) electrical insulator (a substance in which charges do not roam), f) static electricity (an electric charge at rest on an object), g) electric discharge (the loss of static electricity as charges run off of an object), h) electric current (the rate at which ...
... (a substance in which charges can roam), e) electrical insulator (a substance in which charges do not roam), f) static electricity (an electric charge at rest on an object), g) electric discharge (the loss of static electricity as charges run off of an object), h) electric current (the rate at which ...
AppNote Triac Coupler
... two parameters are referred to respectively as OffState- Voltage and Repetitive Peak Off-State-Voltage. It describes the maximum voltage that can be placed across the anode-cathode terminals of an OPTO-TRIAC, without "turning on " the device. In some Thyristor devices, such as DIACs, this ‘is’ the n ...
... two parameters are referred to respectively as OffState- Voltage and Repetitive Peak Off-State-Voltage. It describes the maximum voltage that can be placed across the anode-cathode terminals of an OPTO-TRIAC, without "turning on " the device. In some Thyristor devices, such as DIACs, this ‘is’ the n ...
Calderglen High S3 Physics Magnetism and Electricity What I
... Metals are good conductors of electricity Insulators do not allow current to pass through because there are no free moving charges Plastics, glass and air are good insulators Charge is measured in coulombs Current is measured in amperes I understand and can use the relationship: Current = charge / t ...
... Metals are good conductors of electricity Insulators do not allow current to pass through because there are no free moving charges Plastics, glass and air are good insulators Charge is measured in coulombs Current is measured in amperes I understand and can use the relationship: Current = charge / t ...
Current Elc - Red Hook Central Schools
... These cause the e- to lose PE. Devices are called resistors or loads. They slow down the e- through collisions so they resist current flow. ...
... These cause the e- to lose PE. Devices are called resistors or loads. They slow down the e- through collisions so they resist current flow. ...
Physics 4700 Experiment 6 Digital Circuits
... For comparators use LM311's. The use of the LM311 is outlined below. Finally, hook up a flipflop so that by pressing a button you can either latch the T1L311 and have the display remain fixed when the input is removed from the circuit or clear the display. 6B) Build the infrared (IR) burglar detect ...
... For comparators use LM311's. The use of the LM311 is outlined below. Finally, hook up a flipflop so that by pressing a button you can either latch the T1L311 and have the display remain fixed when the input is removed from the circuit or clear the display. 6B) Build the infrared (IR) burglar detect ...
Ohm`s Law Practice Worksheet Answer Key
... 10. An electric heater works by passing a current of 100 A though a coiled metal wire, making it red hot. If the resistance of the wire is 1.1 ohms, what voltage must be applied to it? ...
... 10. An electric heater works by passing a current of 100 A though a coiled metal wire, making it red hot. If the resistance of the wire is 1.1 ohms, what voltage must be applied to it? ...
16.3 Notes
... When devices are connected in __________________, the voltage across each device is the ______________. The __________________ in each device does not have to be the same. Instead the sum of all the devices equals the ____________ current. A _________________ in any one path in a parallel circuit do ...
... When devices are connected in __________________, the voltage across each device is the ______________. The __________________ in each device does not have to be the same. Instead the sum of all the devices equals the ____________ current. A _________________ in any one path in a parallel circuit do ...
AVOP-ELEKTRO-SMI-010
... Properties of the measuring device: • Power consumption is negligible - a voltmeter does not have an affect on the circuit being measured,, • Internal impedance (resistance) - infinitely large - at least substantially larger than the impedance at which the voltage is measured. ...
... Properties of the measuring device: • Power consumption is negligible - a voltmeter does not have an affect on the circuit being measured,, • Internal impedance (resistance) - infinitely large - at least substantially larger than the impedance at which the voltage is measured. ...
Practical Electricity 1
... A student has 4 resistors labelled A, B, C and D. The student sets up Circuit 1 to identify the value of each resistor. ...
... A student has 4 resistors labelled A, B, C and D. The student sets up Circuit 1 to identify the value of each resistor. ...
Ohm`s Law and Basic Circuit Theory – Answer Sheet
... Ohm’s Law and Basic Circuit Theory – Answer Sheet Ohm’s Law: Q1) On your worksheet sketch the circuit. Set the resistance to 140 ohms. Complete the table on your worksheet. As you increase the voltage the number of batteries will increase in 1.5-volt increments. Note hat the simulation shows current ...
... Ohm’s Law and Basic Circuit Theory – Answer Sheet Ohm’s Law: Q1) On your worksheet sketch the circuit. Set the resistance to 140 ohms. Complete the table on your worksheet. As you increase the voltage the number of batteries will increase in 1.5-volt increments. Note hat the simulation shows current ...
DC Slides
... There is a WebAssign which you should be able to answer later in the week. Feel free to actually read the textbook and start sooner! There will be a QUIZ on Friday. ...
... There is a WebAssign which you should be able to answer later in the week. Feel free to actually read the textbook and start sooner! There will be a QUIZ on Friday. ...
Kirchoff Loop Laws …
... (twice as much current goes down the left) From a/b to bottom of circuit, ΔV/2 as well;; I3 2R = I4R = V/2;; I3 = V/4R (twice as much current down right side) Junction Rule at a: I1 = Iab + I3 à V/(2R) = Iab + V/(4R) à Iab is positive ...
... (twice as much current goes down the left) From a/b to bottom of circuit, ΔV/2 as well;; I3 2R = I4R = V/2;; I3 = V/4R (twice as much current down right side) Junction Rule at a: I1 = Iab + I3 à V/(2R) = Iab + V/(4R) à Iab is positive ...
TRIAC
TRIAC, from triode for alternating current, is a genericized tradename for an electronic component that can conduct current in either direction when it is triggered (turned on), and is formally called a bidirectional triode thyristor or bilateral triode thyristor.TRIACs are a subset of thyristors and are closely related to silicon controlled rectifiers (SCR). However, unlike SCRs, which are unidirectional devices (that is, they can conduct current only in one direction), TRIACs are bidirectional and so allow current in either direction. Another difference from SCRs is that TRIAC current can be enabled by either a positive or negative current applied to its gate electrode, whereas SCRs can be triggered only by positive current into the gate. To create a triggering current, a positive or negative voltage has to be applied to the gate with respect to the MT1 terminal (otherwise known as A1).Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.The bidirectionality makes TRIACs very convenient switches for alternating-current (AC) circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an AC cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling AC heating resistors.