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A nsec is the abbreviation for nanosecond, or 10-9 seconds.
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What is the transformer turns ratio in terms of inductance of primary and secondary coil?
Turns-Ratio (TR) = Npri/Nsec Inductance-Ratio (LR) = (Npri/Nsec)^2 = (TR)^2 Turns ratio (TR) = (Npri/Nsec) Inductance ratio (LR) = (Lpri/Lsec) = (Npri/Nsec)^2 = TR^2 TR = SQRT[ Lpri/Lsec ]
The impulse given to a ball with mass of 4 kg is 16 Nsec If the ball starts from rest what is its final velocity?
An impulse is simply a change of momentum, and momentum is defined as mass x velocity; so you just divide the momentum by the mass to get the velocity. Note about the units: newton x second is the same as kilogram x meter/second2.
What does the SI prefix 'nano' mean?
The prefix nano- is equal to 10-9 and is represented by the Greek letter nu, which looks like a lower-case v. But when writing it on tests and papers, just use a lower-case n, so nanoseconds, for example, is abbreviated nsec or ns.It basically means "one billionth." So a nanosecond is one billionth of a second.
Describe the anchitecture and Features of cypress flash 370 CPLD devices?
Cypress has recently developed a family of CPLD products that are similar to both the AMD and Lattice devices in several ways. The Cypress CPLDs, called FLASH370 are based on FLASH EEPROM technology, and offer speed-performance of 8.5 to 15 nsec pin-to-pin delays. The FLASH370 parts are not in-system programmable. Recognizing that larger chips need more I/Os, FLASH370 provides more I/Os than competing products, featuring a linear relationship between the number of macrocells and number of bi-directional I/O pins. The smallest parts have 32 macrocells and 32 I/Os and the largest 256 macrocells and 256 I/Os.
Why transformer ratio is secondary winding voltage by primary winding voltage but not primary winding voltage by secondary winding voltage?
The transformer primary winding is connected to the alternating current supply. This causes a varying current in the primary winding, which creates a varying magnetic field in the transformer core. Because the primary voltage is alternating, the flux is also alternating - expanding and contracting, and changing polarity in time with the supply. This alternating core flux 'cuts' the secondary winding/s of the transformer, and induces a voltage in the secondary coil/s. As long as there is a magnetic field that is moving, and a conductor for it to move across, it will induce a voltage in the conductor. While the actual induced voltage depends on the amount of flux, the amount of conductor material and the rate of change of the flux, the actual voltage can be calculated from: Vsec = ((Vprim * Nsec) / Nprim) where V = voltage, N = number of turns of wire in the coil, prim = primary and sec = secondary. Transformers don't work on DC - they give a brief pulse out at switch-on and switch-off, because that's the only times the current is changing and the flux is moving. If you have to transform DC, you use a switching circuit that 'chops' the DC into a series of pulses that simulate AC as far as the 'moving flux' requirements of the transformer are concerned.
