Why do we use FM? Find Your Local Station: With AM radio, the amplitude, or overall strength, of the signal is varied to incorporate the sound information. With FM, the frequency (the number of times each second that the current changes direction) of the carrier signal is varied. FM signals have a great advantage over […]
Can a stationary charge experiences a magnetic force?
Can a stationary charge experiences a magnetic force? There is no magnetic force on static charges. However, there is a magnetic force on moving charges. When charges are stationary, their electric fields do not affect magnets. But, when charges move, they produce magnetic fields that exert forces on other magnets. Why is a stationary charge […]
How do you add a function?
How do you add a function? Operations on Functions: Adding and Subtracting Functions Addition. We can add two functions as: (f + g)(x) = f(x) + g(x) Example: Subtraction. We can subtract two functions as: (f – g)(x) = f(x) – g(x) Example: Multiplication. (f•g)(x) = f(x)•g(x) Example: f(x) = 3x – 5 and g(x) […]
Which unit is used to measure the speed of computer?
Which unit is used to measure the speed of computer? Clock speed is measured in units of cycles per second, which is called a Hertz (Hz). Computer boards and CPUs run at rates of millions and billions of Hertz, megahertz (MHz) and gigahertz (GHz). What unit is typically used to measure the speed of a […]
Will a diode reduce voltage?
Will a diode reduce voltage? Diodes allow electricity to flow in only one direction, but a diode will only conduct electricity, when the supply reaches its threshold. The threshold for common silicon diodes is 0.6 volts. After each diode, the voltage can be seen to drop by 0.6 volts. In this way, diodes can be […]
Did Spain sign the Anti Comintern Pact?
Did Spain sign the Anti Comintern Pact? It was signed by German ambassador-at-large Joachim von Ribbentrop and Japanese ambassador to Germany Kintomo Mushakoji. Italy, Spain and other countries joined it until November 1941. Which countries were pro Axis in ww2? The three principal partners in the Axis alliance were Germany, Italy, and Japan. These three […]
What is the similarities between magnetism and gravity?
What is the similarities between magnetism and gravity? Gravity is a force acting on an object with mass, magnetism is a force exerted by virtue of charged particles. Both are based on ferrous material, one is created by mas the other by the movement of the mass. Why is gravitational force a non contact force? […]
What location has the highest air pressure?
What location has the highest air pressure? World: Highest Sea Level Air Pressure Below 750 meters At 1200GMT on 31/12/1968, the pressure at the center of huge anticyclone over Siberia reached 1083.8 hPa and was authenticated. Which city has highest air pressure? A frigid air mass in Mongolia may have just crushed a world record […]
What do you call a female caribou?
What do you call a female caribou? Herds of female caribou, called cows, leave several weeks before the males, which follow with yearling calves from the previous birthing season. What do caribou get eaten by? Foxes, ravens, owls,haegars and hawks are other carrion eaters or scavengers that feed on caribou kills. Native peoples have relied […]
What are the 3 aspects of sound?
What are the 3 aspects of sound? Sound waves are changes in pressure generated by vibrating molecules. The physical characteristics of sound waves influence the three psychological features of sound: loudness, pitch, and timbre. Loudness depends on the amplitude,or height, of sound waves. The greater the amplitude, the louder the sound perceived. What is the […]