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What is the role of commutators in a dc motor?
state the reason why current produced by a simple cell falls rapidly when the cell is being used.
Briefly explain the working of a transformer. Hence, explain why a transformer cannot be used to step-up voltage from a battery.
state three ways in which the strength of magnetic field can be increased
State and explain factors that affect capacitance of parallel-plate capacitor.
All Physicists in One Room Every physicist’s dream would be to have the top scientists of their field all in one place. This would create the opportunity to have new insights, explore fresh ideas and benefit from all the minds ...
How The Heat of The Sun Reaches The Earth The Earth is relatively distant from the Sun, yet its heat reaches us in numerous ways. The most important process is radiation, which involves energy travelling as a wave. To understand ...
The Propagation of Sound The propagation of sound is a phenomenon of how sound waves travel through different mediums and environments. It is the process of how sound is created, transformed, and is sent through various forms of matter. More ...
