Can electric lines appear as closed loops? Electric field lines start (or diverge) from the +ve (positive) charge and terminate (or converge) on negative charge. If the electric field lines form a closed loop, these lines must originate and terminate on the same charge which is not possible because electric field lines always move from […]
What is true inertia?
What is true inertia? Inertia is simply the tendency of an objects to resist a change in whatever state of motion that it currently has. True – Mass is a measure of an object’s inertia. Objects with greater mass have a greater inertia; objects with less mass have less inertia. What are the 12 natural […]
What are the basic electrical elements?
What are the basic electrical elements? The Basics of Electrical Components Resistors. The very first component that you should know about is the resistor. Capacitors. Light Emitting Diode (LED) Transistors. Inductors. Integrated Circuit (IC) What is the purpose of circuit diagram? A drawing meant to depict what the physical arrangement of the wires and the […]
What is difference between model and theory?
What is difference between model and theory? Models are a visual and verbal representation of theories or concepts whereas theories are conceptual framework ideas on a phenomenon. Models simplify a theory or concept for better understanding whereas theories explain or predict a phenomenon with their knowledge and understanding regarding the phenomena. Why do we use […]
What is the difference between micro and macro?
What is the difference between micro and macro? Simply put, micro refers to small things and macro refers to big things. Each of these terms appears in a wide variety of contexts and refers to a vast number of concepts, but if you remember this simple rule, you will generally be able to remember which […]
What was the climate like in Cenozoic Era?
What was the climate like in Cenozoic Era? The climate, which had been warm and moist in the Eocene, became cool, dry, and seasonal. For the first time in the Cenozoic, Antarctica was covered extensively with glaciers, which lowered sea level. Farther north, temperate forests replaced subtropical forests. Does Cenozoic mean new life? Cenozoic, meaning […]
Is H ion an acid or base?
Under what condition can the electric flux linked with a surface be positive?
Under what condition can the electric flux linked with a surface be positive? If a net charge is contained inside a closed surface, the total flux through the surface is proportional to the enclosed charge, positive if it is positive, negative if it is negative. How do you increase flux? There is another way of […]
How many V m is dangerous?
How many V m is dangerous? No known health effects are expected if your exposure to EMF falls below the levels in the following guidelines: natural electromagnetic fields (like those created by the sun): 200 V/m. power mains (not close to power lines): 100 V/m. power mains (close to power lines): 10,000 V/m. What is […]
What is the major drawback of an AC amplifier?
What is the major drawback of an AC amplifier? Its output is not drifting less. The output changes with the time and change in supply voltage. It has poor temperature stability, due to this its operating point shifts. At low frequencies capacitor fail and act like a short circuit. What are the advantages and disadvantages […]