Where is the magnetic field in a coiled current carrying wire the strongest? The magnetic field is strongest inside the coil. This is because the effects of both sides of the vertical part of the wires add up at the centre. What are the advantages of electromagnet over permanent magnet? The main advantage of an […]
What are objects?
What are objects? Definition: An object is a software bundle of variables and related methods. You can represent real-world objects using software objects. Everything that the software object knows (state) and can do (behavior) is expressed by the variables and methods within that object. Will a styro cup float on water? Styrofoam is insoluble in […]
Why is concave mirror used in Searchlight & head lights?
Why is concave mirror used in Searchlight & head lights? When the bulb of headlight is placed at focus of concave mirror, it allows the light to spread out to infinity (longer distances) and at infinity they are approximately parallel. Hence, concave mirrors are used in the headlights of vehicles. What is the role of […]
Which way does current flow?
Which way does current flow? The direction of an electric current is by convention the direction in which a positive charge would move. Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery. Electrons would actually move through the wires in the opposite […]
Is km a unit of speed?
Is km a unit of speed? The kilometre per hour (SI symbol: km/h; abbreviations: kph, kmph, km/hr) is a unit of speed, expressing the number of kilometres travelled in one hour. Which is not unit of speed? Answer. Explanation: b cannot be the unit of speed. How many Kilometre make an hour? 120km What’s the […]
Why CSMA CA is used for wired network?
Why CSMA CA is used for wired network? CSMA/CA tries to reduce the frequency of these collisions and provide a plan at the same time on how to proceed if a collision does occur. The protocol is also important because the transmissions in the wireless networks cannot run in the same order (due to the […]
Do gravitons have mass?
Do gravitons have mass? Gravitons do indeed have mass, and their motions generate kinetic energy. Other particles have mass, but they are much larger, much less numerous, and cannot substitute for the gravitational effects which generate space curvature. The great mystery of so-called force at a distance is explained by the mass of gravitons. Are […]
What are some long term consequences of desertification?
What are some long term consequences of desertification? Desertification reduces the ability of land to support life, affecting wild species, domestic animals, agricultural crops and people. The reduction in plant cover that accompanies desertification leads to accelerated soil erosion by wind and water. How can we reduce land degradation? 5 possible solutions to soil degradation […]
What are the 3 major layers of the geosphere?
What are the 3 major layers of the geosphere? The Earth’s geosphere is divided into three chemical sections: The crust, composed almost entirely of light elements, like silicon. The mantle, which is 68% of the Earth’s mass. The core, the innermost layer; it is composed of very dense elements, such as nickel and iron. What […]