香港考試局
... voltage supplied to R by the battery is at a maximum. (3) If the resistance of R is very large, the current in the circuit is very small but most of the power supplied by the battery is dissipated by R. A. (1) only B. (3) only C. (1) and (2) only D. (2) and (3) only ...
... voltage supplied to R by the battery is at a maximum. (3) If the resistance of R is very large, the current in the circuit is very small but most of the power supplied by the battery is dissipated by R. A. (1) only B. (3) only C. (1) and (2) only D. (2) and (3) only ...
Lab 4 - ece.unm.edu
... The main difference with the BJT biasing scheme is that ideally no current flows from the voltage divider into the MOSFET. The CS and CD MOSFET amplifiers can be compared to the CE and CC BJT amplifiers respectively. Like the CE amplifier, the CS amplifier has a negative voltage gain and an output i ...
... The main difference with the BJT biasing scheme is that ideally no current flows from the voltage divider into the MOSFET. The CS and CD MOSFET amplifiers can be compared to the CE and CC BJT amplifiers respectively. Like the CE amplifier, the CS amplifier has a negative voltage gain and an output i ...
DC Circuits
... Capacitors 1 and 2, of capacitance C1 = 4F and C2 = 12F, respectively, are connected in a circuit as shown above with a resistor of resistance R = 100 and two switches. Capacitor 1 is initially charged to a voltage Vo = 50 V, and capacitor 2 is initially uncharged. Both of the switches S are then ...
... Capacitors 1 and 2, of capacitance C1 = 4F and C2 = 12F, respectively, are connected in a circuit as shown above with a resistor of resistance R = 100 and two switches. Capacitor 1 is initially charged to a voltage Vo = 50 V, and capacitor 2 is initially uncharged. Both of the switches S are then ...
Practical activities from the 2014 Physics Teachers
... Reflection: Students with mirrors and one lens. Light is to be reflected by each mirror and end up at a determined target. PhET website Check http://phet.colorado.edu/en/simulations/category/physics/light-andradiation . Each Simulation has a range of teaching ideas . A set of short introductor ...
... Reflection: Students with mirrors and one lens. Light is to be reflected by each mirror and end up at a determined target. PhET website Check http://phet.colorado.edu/en/simulations/category/physics/light-andradiation . Each Simulation has a range of teaching ideas . A set of short introductor ...
Series and parallel circuits
... The same amount of current flows though each component equally. Both lamps will light to the same brightness. The energy given by the cell as potential difference, measured in Volts, (v) is used by the two lamps, which turn that energy into the form of heat and light. Each lamp has a resistance meas ...
... The same amount of current flows though each component equally. Both lamps will light to the same brightness. The energy given by the cell as potential difference, measured in Volts, (v) is used by the two lamps, which turn that energy into the form of heat and light. Each lamp has a resistance meas ...
capacitor charge/discharge
... but now it’s charging data rather than discharging data. 12. Repeat steps 10-12 under CALCULATING above. Then complete steps 1-2 and 8-9 under ANALYSIS. Be sure to discuss differences and similarities not only between the two graphs for discharging, but also differences and similarities between the ...
... but now it’s charging data rather than discharging data. 12. Repeat steps 10-12 under CALCULATING above. Then complete steps 1-2 and 8-9 under ANALYSIS. Be sure to discuss differences and similarities not only between the two graphs for discharging, but also differences and similarities between the ...
9. RC Time Constant
... so that a plot of lnV versus t is a straight from the slope of which can be determined. Function Generator The charging and discharge can be accomplished by connecting the capacitor to a function generator that generates a square wave voltage as shown. Charging occurs during the half period when t ...
... so that a plot of lnV versus t is a straight from the slope of which can be determined. Function Generator The charging and discharge can be accomplished by connecting the capacitor to a function generator that generates a square wave voltage as shown. Charging occurs during the half period when t ...
Presentation by Marioan Piekutowski ( pptx , 59 kB ) - SC B4
... Selection of Critical Contingency • Three phase fault (not causing a trip of radial connection but) temporarily separating two systems with one part slowing down and the wind farm accelerating • Faults causing large voltage angle shifts • Asymmetrical faults – how credible is their ...
... Selection of Critical Contingency • Three phase fault (not causing a trip of radial connection but) temporarily separating two systems with one part slowing down and the wind farm accelerating • Faults causing large voltage angle shifts • Asymmetrical faults – how credible is their ...
VTVSxxASMF Series TVS Diodes Safeguard Portable Electronics
... High surge capability of 400 W at 10/1000 μs Peak pulse current from 2.9 A to 20.3 A Reverse clamping voltage from 14.8 V to 103.5 V ESD capability of ± 30 kV (air and contact discharge) in accordance with IEC 61000-4-2 Support high-temperature soldering to 260 °C / 10 s at their terminals Meet the ...
... High surge capability of 400 W at 10/1000 μs Peak pulse current from 2.9 A to 20.3 A Reverse clamping voltage from 14.8 V to 103.5 V ESD capability of ± 30 kV (air and contact discharge) in accordance with IEC 61000-4-2 Support high-temperature soldering to 260 °C / 10 s at their terminals Meet the ...
Linear Circuit Analysis
... Linear Circuits • Most circuits we will study are linear • Linear circuits contain linear elements – those that have a linear relationship between their voltage and their current – Resistors – Voltage and Current Sources – Dependent sources that depend on a voltage or current (but not if they depen ...
... Linear Circuits • Most circuits we will study are linear • Linear circuits contain linear elements – those that have a linear relationship between their voltage and their current – Resistors – Voltage and Current Sources – Dependent sources that depend on a voltage or current (but not if they depen ...
Experiment # 1 -- Diodes and Diode Circuits
... If the voltage is applied with proper polarity, the circuit should respond by lighting a Green LED. If the voltage is applied with the wrong polarity, have the circuit respond by lighting a Red LED and sounding a buzzer. The buzzer will operate on any DC voltage from 3 to 18 volts at a current of 10 ...
... If the voltage is applied with proper polarity, the circuit should respond by lighting a Green LED. If the voltage is applied with the wrong polarity, have the circuit respond by lighting a Red LED and sounding a buzzer. The buzzer will operate on any DC voltage from 3 to 18 volts at a current of 10 ...