What steps can you use to fix the mbr?
Hey there,
This is what worked for me...
1. First you need a windows recovery disc, either from the internet or one that came with the computer.
2. If you have already tried the usual, "Fix Startup Repair" and it doesn't work continue.
3. First boot into the recovery disc and select your language and windows os from the list.
4. You should now see a bunch of options going down the page, select cmd.
5. Type in
bootrec /rebuildbcd
bootrec /fixboot
bootrec /fixmbr
bootsect /nt60 C: /mbr /force
bootrec /fixboot
bootrec /fixmbr
bootrec /rebuildbcd
attrib -h -s C:\boot\BCD
del C:\boot\BCD
bcdedit /createstore c:\boot\bcd.temp
bcdedit /store c:\boot\bcd.temp /create {bootmgr} /d "Windows Boot Manager"
bcdedit /import c:\boot\bcd.temp
bcdedit /set {bootmgr} device partition=C:
bcdedit /timeout 10
attrib -h -s C:\boot\bcd.temp
del c:\boot\bcd.temp
bcdedit /create /d "Microsoft Windows" /application osloader
See the number it spits back - somthing like {c0dfc4fa-cb21-11dc-81bf-0050056c00008} write it down
bcdedit /set {yourenumberhere} device partition=C:
bcdedit /set {yourenumberhere} osdevice partition=C:
bcdedit /set {yourenumberhere} path \Windows\system32\winload.exe
bcdedit /set {yourenumberhere} systemroot \Windows
bcdedit /displayorder {yourenumberhere}
bootrec /fixboot
bootrec /fixmbr
bootsect /nt60 C: /mbr /force
6. Restart and boot into windows
P.S. If your bootloader looks like windows vista find a bootloader editing program that says it will restore it to default
-Sam
Will 1000 mah charger damage 500 mah battery?
probably, yes.
imagine putting twice a much AA's in your radio or whatever.
What is potential barrier on the basis of p-type and n-type semiconducter?
The potential barrier on the basis of p-type and n-type semiconductor is the space created by the depletion layer that charged particles need sufficient energy to overcome.
What size power inverter should you use for 7.4V tablet?
Your question only makes sense to me if you want to use the AC-powered charger that came with your tablet and somehow run it with DC because otherwise you wouldn't need an inverter. Normally you plug your AC-powered charger into the 117 volt 60 hertz AC power socket (in the USA, not in Europe or elsewhere abroad) at home or office or wherever. An "inverter" creates AC output power from DC input power. Say you're in your car. The "cigarette" lighter supplies nominally 12 volts DC, though it's more like 13.6 volts DC when the engine is running and powering the alternator. You can't power your tablet directly with that -- the voltage is too high. You could use the "12 volts" to power an inverter that produces 60 hertz, 117 volts AC and then plug your AC-powered tablet charger into that. Then all you need to know is how much AC power the inverter can provide. I've measured the power needed to charge my android (Vizio) tablet. The AC-powered charger needs about 10 watts of power. That's a very light load for an inverter, so I reckon just about any inverter should work.
What are the basic blocks of generalized instrumentation system?
basically an input is given to the transducer, which is the 1st basic block of instrumentation system. this transducer's o/p goes to the signal conditioning circuit whose o/p is then given to the recorder, analog meter, digital transistor, printer, controller, oscilloscope and the punch card.
Can I conect 4 ohm loudspeakers to 8 ohm output of my tube amp as the sound is better?
No.
An amplifier designed for an 8 ohm load works best with an 8 ohm load. You can connect a 4 ohm load to it, but the current rating curve of the amplifier will not match the voltage rating curve, and will will not achieve rated power. Attempting to achieve rated power will result in damage to the amplifier.
Look at this mathematically...
If the amplifier is rated 100 watts into 8 ohms, then it can produce 28 volts doing so. It will also produce 3.5 amperes at that power. So, when we say the amplifier is rated 100 watts into 8 ohms, we mean that the amplifier is rated 28 volts or 3.5 amperes, whichever comes first.
Connect a 4 ohm load to this amplifier, and 3.5 amperes will induce 14 volts and 50 watts. You cannot get 100 watts because that would require 5 amperes and 20 volts, and the amplifier cannot produce 5 amperes.
Ohm's Law: Current is voltage divided by resistance.
12 volts divided by 470 ohms is 25.5 milliamperes.
Power is voltage times current, so power in this case would be 12 volts times 25.5 milliamperes, or 0.306 watts. As a result, you need at least a one half watt resistor, and I would prefer a one watt resistor, because it is going to get a bit warm, and a margin of safety is always a good thing. This is particularly true when you consider tolerances, such as the battery actually putting out 13 or 14 volts and the resistor being on the low side, at 470 - 10%, or 423 ohms. (0.463 watts - too close to one half watt for comfort)
What happens with voltage and current by damaged diode...the diode is IN5408?
It depends on how the diode is damaged. There are generally two cases. One, the diode is shorted, and conducts with a low impedance in both directions. The other, the diode is open, and does not conduct, having a high impedance, in both directions. The effect depends on the particular circuit. In a power supply, a shorted diode will often blow the fuse, while an open diode will result in no output, or in high ripple voltage output.
Is it possible that diode has normal voltage output but wrong current,meaning low mA?
Why does a diode not conduct until the cut in voltage is reached?
Cut in voltage is the minimum voltage required to overcome the barrier potential.
In other words it is like trying to push a large boulder....it may not be possible to push a large boulder by one person but it may be done if 2 or more people try to push it together depending on the size of the boulder.....similarly....the charge carriers in the barrier region have a potential energy of about 0.6V for Silicon and about 0.2V for Germanium. so in order for the diode to conduct, it is required to overcome the potential of the charge carriers in the junction barrier region and hence only if a potential more than that of the barrier potential (cut off voltage) is applied, then electrons flow past the junction barrier and the diode conducts.
How do you use 16 ohms speakers with 8 ohms amplifier?
On any given day you can hear manufacturers, distributors, sales people or even customers talking about amplifiers with a "4 ohm output" or an "8 ohm output". You might even hear them refer to something called an "8 ohm amplifier" if they have a loudspeaker with this impedance (resistance) that they wish to connect. This is a rather unfortunate and also inaccurate use of technical language. There are no 8 ohms amplifiers on the market. The source impedance will be less than 0.5 ohms.
It was a scientist named J. J. Thomson.
What happen if 4 resistor is connected in parallel and resistor 1 is connected as short circuit?
I'd have to see a diagram, as your description in words is unclear.
What is crack detection method?
According to Leonard Cohen's song "Anthem",
Ring the bells that still can ring
Forget your perfect offering
There is a crack, a crack in everything
That's how the light gets in.
Obviously, to detect the crack, you look for the light shining in.
(Or on a plumber, you wait for him to bend over, and then you take a look.)
Why silicon dioxide used in MOSFET instead of any other material which have high k-dielectric?
Because the gate terminal should highly resistive..
silicon dioxide has high resistance and hence gate current is very very low...DVR stands for Digital Video Recorder.
Very simply, it is a video recorder that records data as numbers rather than an analog process. The data is recorded either on to tape or a hard disk. Many commercial DVRs use tape but domestic DVRs tend to be disk based.
Digital recorders offer more reliable recording than the older analog recorders such as VHS and Betamax recorders. Although digital does not automatically mean better quality, DVRs are far superior to their older analog counterparts in terms of image quality.
DVRs are used in homes to capture broadcasts for viewing at a later time or they cab be used to capture the output from video cameras and other sources.
How can you identify the emitter of transistor SL100?
The SL100 transistor has a TO-39 case. In the TO-39, the emitter is closest to the tab, and the collector is furthest away from the tab.
Is it possible to an antenna to act as transmitter and receiver at a time?
why not..
it is possible specially in satellites where such kind of antenna's are known as transceivers that is they can transmit and receive at the same time.
Why rs232 voltage level converting to ttl level?
RS-232 is a standard built a longer while ago, and its specifications dictate a maximum voltage of +-25V. HIGH signal levels at +-5V, +-12V and +-15V are not uncommon. The range of operation is from -25V to +25V. Also, RS-232 standard notes that levels between -3V and +3V are illegal (as in, they are assumed not to exist, nor carry any information).
On the other hand, TTL stands for Transistor-Transistor Logic, and the maximum rating for that is 5V. HIGH signal levels are at any point above 3.5V. The range of operation is between 0V and 5V.
If one were to connect these with no conversion, the TTL device would probably be burned. Even if it would withstand, the designs are sufficiently different for them not to communicate properly. Thus, the need to 'bridge the gap' between the two.
It depends on the version, and the release date.
If someone owns an iPhone 3G, then buys a 4G, the 4G is likely to be better since the developers are beginning to receive more and more experience.
How long do you have to wait to text and call when you get a new phone?
More or less instantly, but it's advised that you do a preliminary charge of a certain amount of hours and also it can be a good idea to look through the manual that accompanies the mobile.
Can anyone suggest how can you choose amplifier and speakers?
you need to choose speakers according to the power supply of amplifier, so that the amplifier can wrok. Besides, to create good sound effect, you need to take your room area into consideration, if the room is small, amplifier and speakers with high power is not necessary. You can visit website of Unify company, they have many packages for amplifier and speakers, hope it can help somehow.