What is the rule for adding and subtracting negative numbers? Two signs. When adding positive numbers, count to the right. When subtracting positive numbers, count to the left. When subtracting negative numbers, count to the right. What is the rule for adding negative numbers? The Rules: Rule Example +(+) Two like signs become a positive […]
Which one of the following would be most powerful electro magnet?
Which one of the following would be most powerful electro magnet? The correct option is C) Soft iron. Soft iron is selected for making the core of an electromagnet because the core is used in a solenoid for the production of the strongest magnetism. Which metal is most suitable for electromagnet? Iron What is the […]
What is difference between FFT and DFT?
What is difference between FFT and DFT? DFT or Discrete Fourier Transform is an algorithm that computes the Fourier transform of a digitized (discrete) signal. FFT (Fast Fourier Transform) is an optimized implementation of this transform. What is output of FFT? You can find more information on the FFT functions used in the reference here, […]
What is a Type B MCB used for?
What is a Type B MCB used for? ‘B’ Curve MCB is used for the protection of circuits with equipment that does not cause surge current, like lighting and distribution circuits. So they are, the best fit for residential applications and domestic appliances with mainly Resistive Load. Can you mix MCB and RCBO? Yes, but […]
What best describes the shape and volume of a gas?
What is relation between frequency and wavelength?
What is relation between frequency and wavelength? What is the relationship between frequency and wavelength? The higher the frequency, the shorter the wavelength. Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength. What is the […]
Where does energy go when it leaves a ball?
Where does energy go when it leaves a ball? As the ball falls, that energy is converted to kinetic energy. When the ball collides with the floor, some of this kinetic energy is transferred to the floor and converted to thermal energy (friction) and elastic potential energy (ball deformation.) Why does a ball lose energy […]
What is the correct way to express the number below using scientific notation 5600000?
What is the correct way to express the number below using scientific notation 5600000? Why is 5,600,000 written as 5.6 x 106 in scientific notation? What is the scientific notation of 923? Notation Scientific notation 9.23 × 102 Engineering notation 923 × 100 What is the scientific notation for 5050? Why is 5,050 written as […]
Why does Neon give off red light?
Why does Neon give off red light? Why is neon light red? Photo: When electrons in neon atoms return from their “excited” state to their “ground” (unexcited) state, they give out packets of energy called quanta that our eyes see as red light. In argon atoms, the quanta are bigger and our eyes see them […]