You are asked to design a coil to operate in air that will produce a flux density of 0.01T. The maximum current for the coil wire is 1 A, and the space available for the coil limits the length to 1 cm. How many loops are required for this coil? Round your answer to the nearest whole number.
What will be an ideal response?
The coil is in air, and the relative permeability of air is 1.0000004. No significant error is involved by taking the permeability of air equal to the permeability of vacuum.
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A. -30 cm B. +30 cm C. -60 cm D. +60 cm E. +90 cm
From the center outward, the correct order is
A) liquid iron inner core, solid nickel outer core, rocky mantle, silicate crust. B) solid metallic inner core, molten metal outer core, silicate mantle and crust. C) solid metal core, molten metal hydrosphere, rocky lithosphere, gases in atmosphere. D) solid rock core, liquid metal mantle, solid rock crust. E) molten metal hydrosphere, molten rock lithosphere, solid silicate crust.
Open clusters are found in the ________ of our Milky Way Galaxy
Fill in the blank(s) with correct word
The ripple frequency of a bridge rectifier is
a. double the input frequency. b. the same as the input frequency c. triple the input frequency. d. quadruple the input frequency.