228KB - NZQA
... on voltage and current. • Since both resistors are on the same branch, they both have the same current through them. • Since voltage is directly proportional to resistance, when current is the same (V = IR), the 4.6 resistor would have a greater voltage across it. • Hence the 4.6 resistor would ...
... on voltage and current. • Since both resistors are on the same branch, they both have the same current through them. • Since voltage is directly proportional to resistance, when current is the same (V = IR), the 4.6 resistor would have a greater voltage across it. • Hence the 4.6 resistor would ...
Physics 536 - Assignment #5
... This circuit can be modeled using SPICE in the following way: • vin (t) represents a 60 Hz, 110 VAC (RMS) power source, modeled using: VIN 1 0 0 AC SIN(0 160V 60Hz 0 0) • R1 is a small resistance (eg, R1 ∼ 0.1 Ω), intended only to ensure numerical stability of the simulation. However, it could also ...
... This circuit can be modeled using SPICE in the following way: • vin (t) represents a 60 Hz, 110 VAC (RMS) power source, modeled using: VIN 1 0 0 AC SIN(0 160V 60Hz 0 0) • R1 is a small resistance (eg, R1 ∼ 0.1 Ω), intended only to ensure numerical stability of the simulation. However, it could also ...
2.6.4 Interfacing Outputs Word Document | GCE AS/A
... the required result. The power of the motors varies considerably depending on the application but they all require quite large currents to make them work successfully, particularly at startup where the load current can be very high. Virtually all motors cannot be driven directly by logic circuits, o ...
... the required result. The power of the motors varies considerably depending on the application but they all require quite large currents to make them work successfully, particularly at startup where the load current can be very high. Virtually all motors cannot be driven directly by logic circuits, o ...
Lecuture-44
... Lecuture-44 Design of stator winding Stator winding is made up of former wound coils of high conductivity copper of diamond shape. These windings must be properly arranged such that the induced emf in all the phases of the coils must have the same magnitude and frequency. These emfs must have same w ...
... Lecuture-44 Design of stator winding Stator winding is made up of former wound coils of high conductivity copper of diamond shape. These windings must be properly arranged such that the induced emf in all the phases of the coils must have the same magnitude and frequency. These emfs must have same w ...
Telegraph-Lab-MGL10 7 final
... The Electromagnet - The essential component of the Sounder Electromagnets are different from permanent magnets in that they can be turned off and on at will, by connecting them in a circuit with a battery and opening and closing the circuit. The electromagnet is the vital component of the sounder of ...
... The Electromagnet - The essential component of the Sounder Electromagnets are different from permanent magnets in that they can be turned off and on at will, by connecting them in a circuit with a battery and opening and closing the circuit. The electromagnet is the vital component of the sounder of ...
Contactors - EandM Public Sharepoint
... Page 2/4 The need for using UL listed 600VDC Contactors in Solar PV applications ...
... Page 2/4 The need for using UL listed 600VDC Contactors in Solar PV applications ...
97071
... To open the main contacts, the trip solenoid is pulsed with electrical current which produces an electrical field. The electrical field, concentrated in the center of the coil, moves the plunger assembly toward the open position. As the plunger moves, the magnetic field strength-density increases as ...
... To open the main contacts, the trip solenoid is pulsed with electrical current which produces an electrical field. The electrical field, concentrated in the center of the coil, moves the plunger assembly toward the open position. As the plunger moves, the magnetic field strength-density increases as ...
Budgeting - Learning While Doing
... electric motors. • Basically, motors take the electrical energy from an electricity source, such as an outlet or battery, and change that energy into something that spins, moves or does some sort of work • Electric motors work due to electromagnetic interactions: the interaction of current (the flow ...
... electric motors. • Basically, motors take the electrical energy from an electricity source, such as an outlet or battery, and change that energy into something that spins, moves or does some sort of work • Electric motors work due to electromagnetic interactions: the interaction of current (the flow ...
Satellite Communications
... code will be sent in a continuous from a transmitter system, and when the car come to the entrance of the car park (Garage) the transmitter sends a code of the car by a magnetic field to the receiver located under the ground, as the receiver receives a code of the car and check if this code was one ...
... code will be sent in a continuous from a transmitter system, and when the car come to the entrance of the car park (Garage) the transmitter sends a code of the car by a magnetic field to the receiver located under the ground, as the receiver receives a code of the car and check if this code was one ...
SS311PT|SS411P Bipolar Hall-Effect Digital Position Sensors with
... the differential zone (applied magnetic field >Brp and
... the differential zone (applied magnetic field >Brp and
lab11 - University of Puget Sound
... Solenoid, compass, bar magnets, current balance, power supplies, ammeters, LCR meter, electronic balance and a dissectible electromagnetic motor. Introduction You have learned in class that magnetic forces are only felt by moving charges (the Lorentz force law). But everybody knows that magnets exer ...
... Solenoid, compass, bar magnets, current balance, power supplies, ammeters, LCR meter, electronic balance and a dissectible electromagnetic motor. Introduction You have learned in class that magnetic forces are only felt by moving charges (the Lorentz force law). But everybody knows that magnets exer ...
Ipod Technology - Goucher College
... The driver produces sound waves by rapidly vibrating a flexible piece of paper, metal or plastic called a cone or diaphragm. – To cause the cone to move, a voice coil is attached to the bottom. The coil acts as an electromagnet. The electromagnet consists of a with a piece of magnetic metal with i ...
... The driver produces sound waves by rapidly vibrating a flexible piece of paper, metal or plastic called a cone or diaphragm. – To cause the cone to move, a voice coil is attached to the bottom. The coil acts as an electromagnet. The electromagnet consists of a with a piece of magnetic metal with i ...
an electromagnetic energy scavenger from direct airflow
... their utility in environments with fuzzy and/or lowfrequency vibrations [2]. Though researchers have addressed this by adopting mechanical up-converters [3] or wide-band mechanical resonator arrays [4], these devices still require vacuum packaging and controlled-frequency excitation. Meanwhile, airf ...
... their utility in environments with fuzzy and/or lowfrequency vibrations [2]. Though researchers have addressed this by adopting mechanical up-converters [3] or wide-band mechanical resonator arrays [4], these devices still require vacuum packaging and controlled-frequency excitation. Meanwhile, airf ...
Coilgun
A coilgun (or Gauss rifle, in reference to Carl Friedrich Gauss, who formulated mathematical descriptions of the magnetic effect used by magnetic accelerators) is a type of projectile accelerator consisting of one or more coils used as electromagnets in the configuration of a linear motor that accelerate a ferromagnetic or conducting projectile to high velocity. In almost all coilgun configurations, the coils and the gun barrel are arranged on a common axis.Coilguns generally consist of one or more coils arranged along a barrel, so the path of the accelerating projectile lies along the central axis of the coils. The coils are switched on and off in a precisely timed sequence, causing the projectile to be accelerated quickly along the barrel via magnetic forces. Coilguns are distinct from railguns, as the direction of acceleration in a railgun is at right angles to the central axis of the current loop formed by the conducting rails. In addition, railguns usually require the use of sliding contacts to pass a large current through the projectile or sabot but coilguns do not necessarily require sliding contacts. Whilst some simple coilgun concepts can use ferromagnetic projectiles or even permanent magnet projectiles, most designs for high velocities actually incorporate a coupled coil as part of the projectile.