Useful tips for everyday
How do I know if my data is already in a database? To test whether a row exists in a MySQL table or not, use…
How does bypassing the emitter resistor affect the input resistance? Emitter Bypass Capacitor When an emitter resistance is added in a CE (Common Emitter) amplifier,…
How do I count the number of specific values in a column in Excel? Count cells equal to Generic formula. =COUNTIF(range,value) To count the number…
Can El Capitan read NTFS? While Macs can read files on NTFS drives, OS X cannot write to them by default. If you plug a…
Why we use BJT differential amplifier? Differential Amplifier using Transistor. A differential amplifier is designed to give the difference between two input signals. The emitters…
Why is my MacBook Pro so slow after installing Catalina? If the speed problem you’re having is that your Mac takes much longer to startup…
How do I give an App shortcut permissions? Change permissions based on their type On your phone, open the Settings app. Tap Privacy. Permission manager.…
How do I block a folder from being created? Right click the folder then on the Security tab click Advanced -> Change Permissions -> Select…
Can I use cold water in air cooler? I intuitively thought that indeed cold water will produce colder air. But as we all know evaporative…
How do you calculate isoelectric point? In order to determine the isoelectric point a given protein, we must follow a general rule that consists of…