F5-23-02-01Phy
... (b) Suggest a simple method of measuring the wavelength of the wave using stroboscope. [ 3 marks ] (c) It takes 2 s for the waves generated by X to reach the opposite end AD of the tank. During this time interval, the vibrator makes 5 ‘up’ and 5 ‘down’. (i) the frequency, (ii) the wavelength, and (i ...
... (b) Suggest a simple method of measuring the wavelength of the wave using stroboscope. [ 3 marks ] (c) It takes 2 s for the waves generated by X to reach the opposite end AD of the tank. During this time interval, the vibrator makes 5 ‘up’ and 5 ‘down’. (i) the frequency, (ii) the wavelength, and (i ...
LED Current Regulators - Integrated Silicon Solution
... automotive and industrial lighting applications. Each application requires specific attention to the LED’s luminous intensity and chromaticity output, LED current requirements and thermal management. ISSI’s family of CCR devices have been shown to have several distinct advantages for controlling LED ...
... automotive and industrial lighting applications. Each application requires specific attention to the LED’s luminous intensity and chromaticity output, LED current requirements and thermal management. ISSI’s family of CCR devices have been shown to have several distinct advantages for controlling LED ...
ELectricity
... • When an electric current flows through a wire, the wire heats up. Electrical energy has been converted into heat energy. • The greater the resistance of the wire, the greater the amount of heat produced. This heating effect is used in common electrical appliances. ...
... • When an electric current flows through a wire, the wire heats up. Electrical energy has been converted into heat energy. • The greater the resistance of the wire, the greater the amount of heat produced. This heating effect is used in common electrical appliances. ...
Introduction - Class Home Pages
... Have included inductance in models of resistor and capacitor Now will examine inductance As specific property / component How it applies in real-world context Can base analysis on three fundamental principles i. There are circular rings of magnetic field lines around all currents ii. Inductance is n ...
... Have included inductance in models of resistor and capacitor Now will examine inductance As specific property / component How it applies in real-world context Can base analysis on three fundamental principles i. There are circular rings of magnetic field lines around all currents ii. Inductance is n ...
High Magnetic field generation for laser-plasma
... determined by the geometry, which effects the current through a simple LRC system; therefore, the magnetic field between two coils can be optimized by varying the number of turns and the inner solenoid radius. The outer radius does not affect the inductance, and should be chosen with consideration t ...
... determined by the geometry, which effects the current through a simple LRC system; therefore, the magnetic field between two coils can be optimized by varying the number of turns and the inner solenoid radius. The outer radius does not affect the inductance, and should be chosen with consideration t ...
Signal Resistance of the Current Mirror
... 6.3 V; it would be much better if it were zero! Several methods exist of making the quiescent value zero. 1. Take the output via a capacitor. This is a good solution for an a.c. amplifier, but it will not work for d.c. or indeed slow a.c. Anyone who has tried to measure slow signals on an oscillosco ...
... 6.3 V; it would be much better if it were zero! Several methods exist of making the quiescent value zero. 1. Take the output via a capacitor. This is a good solution for an a.c. amplifier, but it will not work for d.c. or indeed slow a.c. Anyone who has tried to measure slow signals on an oscillosco ...
Chapter 7. Magnetic Materials and Magnetic Circuit Analysis
... transformers, actuators and rotating machines, in which the magnetic fields vary frequently, whereas hard materials, or permanent magnets, are used to replace magnetization coils for generating static magnetic fields in devices such as electric motors and actuators. The B-H relationships and hystere ...
... transformers, actuators and rotating machines, in which the magnetic fields vary frequently, whereas hard materials, or permanent magnets, are used to replace magnetization coils for generating static magnetic fields in devices such as electric motors and actuators. The B-H relationships and hystere ...
What is the Geomagnetic Field?!
... It's an electromagnet!! That's right. The Earth has an electromagnet inside. It generates magnetic fields like a bar magnet does. When the intensity and direction of the electric currents change, magnetic poles can even be reversed. Oh, my. My compass can't be used anymore after the ...
... It's an electromagnet!! That's right. The Earth has an electromagnet inside. It generates magnetic fields like a bar magnet does. When the intensity and direction of the electric currents change, magnetic poles can even be reversed. Oh, my. My compass can't be used anymore after the ...
Here we will find the voltage across terminals a and b - Rose
... Here we will find the voltage across terminals a and b. We’ll see if it’s possible to simplify this circuit without affecting vab. Notice that the 150 and 45 kΩ resistors are in parallel because they have the same pair of nodes. To combine their equivalent resistances, divide their product by their ...
... Here we will find the voltage across terminals a and b. We’ll see if it’s possible to simplify this circuit without affecting vab. Notice that the 150 and 45 kΩ resistors are in parallel because they have the same pair of nodes. To combine their equivalent resistances, divide their product by their ...
Galvanometer
A galvanometer is a type of sensitive ammeter: an instrument for detecting electric current. It is an analog electromechanical actuator that produces a rotary deflection of some type of pointer in response to electric current through its coil in a magnetic field.Galvanometers were the first instruments used to detect and measure electric currents. Sensitive galvanometers were used to detect signals from long submarine cables, and to discover the electrical activity of the heart and brain. Some galvanometers use a solid pointer on a scale to show measurements; other very sensitive types use a miniature mirror and a beam of light to provide mechanical amplification of low-level signals. Initially a laboratory instrument relying on the Earth's own magnetic field to provide restoring force for the pointer, galvanometers were developed into compact, rugged, sensitive portable instruments essential to the development of electrotechnology. A type of galvanometer that records measurements permanently is the chart recorder. The term has expanded to include use of the same mechanism in recording, positioning, and servomechanism equipment.