Category: Physics

What is the equivalent resistance between points A and B 2 points? Answer. Rt=2+2+1=5 ohm. What is equivalent resistance in parallel? If the two resistances or impedances in parallel are equal and of the same value, then the total or equivalent resistance, RT is equal to half the value of one resistor. Which of the […]

What type of force is pushing a box? Forces Due to Friction (and Newton’s Third Law) When you push a heavy box, it pushes back at you with an equal and opposite force (Third Law) so that the harder the force of your action, the greater the force of reaction until you apply a force […]

What happens to the resistance of wire if it is stretched? The resistance of a wire is inversely proportional to its area and directly proportional to its length. When the length is tripled then resistance will also become three times. If The wire is stretched 3 times the original length, the cross-section of the wire […]

Why is my hand eye coordination so bad? Hand-eye coordination problems are usually first noted as a lack of skill in drawing or writing. Poor hand-eye coordination can have a wide variety of causes, but the main two conditions responsible for inadequate hand-eye coordination are vision problems and movement disorders . … What is the […]

Why do we use displacement? It quantifies both the distance and direction of the net or total motion along a straight line from the initial position to the final position of the point trajectory. A displacement may be identified with the translation that maps the initial position to the final position. What’s the formula for […]

What height of water is supported by atmospheric pressure what height of mercury? 760 mm Why is water not used as barometric liquid? Solution. Water is not a suitable barometric liquid because: (i) The vapour pressure of water is high, so its vapours in the vacuum space will make the reading inaccurate. (ii) Water sticks […]

What are three types of LASERs? Types of lasers – Solid state laser, Gas laser, Liquid laser & Semiconductor laser. What is radiation in laser? Laser radiation is an optical radiation that can either be visible or invisible. If the wavelength of a laser beam is 400-780nm (nanometres), the beam is visible to the human […]

When you prepare for a right turn should you remain as near the center of the lane as possible? As you prepare to turn, reduce speed and stay as far to the right as possible. Begin the turn in the lane nearest to the right-hand curb and end the turn in the lane nearest the […]

How do I calculate power? Power is a measure of the amount of work that can be done in a given amount of time. Power equals work (J) divided by time (s). The SI unit for power is the watt (W), which equals 1 joule of work per second (J/s). Power may be measured in […]

What are the three domains into which organisms are classified? The three-domain system is a biological classification introduced by Carl Woese et al. in 1990 that divides cellular life forms into archaea, bacteria, and eukaryote domains. What are 3 reasons we classify organisms? Classification allows us to understand diversity better. It helps in the identification […]