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Question:
The external surface of a short vertical segment of plastic pipe is hidden from view by wire wrapped around the pipe. Current flows clockwise as out looked from above in the wire. What is the path of the magnetic field produced by the wire at a point inside the pipe?
Answer:
We conclude the direction of the magnetic field by means of the right hand rule for something curly something straight. We twist the fingers of our right hand around in the direction of the current. The thumb after that points downward so the direction of the magnetic field is downward.
dawda
A transformer has 600 primary turns and 150 secondary turns. The primary and secondary resistances are 0.25 and 0.01 respectively and the corresponding leakage reactances are 1.0 a
The substances which can be stretched to big values of strain are known as elastomers. e.g. elastic tissue of aorta, the main artery carrying blood from the heart.
Advantages of A.C. transmission of power 1. The power can be produced at high voltages. 2. The maintenance of a.c. sub-stations is simple and cheaper. 3. The a.c. voltage
The wave nature of light is demonstrated by which of the following a) The photoelectric effect b) Colour c) The speed of light d) Diffraction Ans: The w
Can you put any amount of light into a fiber optic? It is one of the standard fallacies of the industry. The system required to put a sizeable amount of light in a fiber optic
The scattering of a photon by an electron is known as Compton Effect. The momentum and energy is preserved. Scattered photon will have less power as compare to incident photon (les
A mild steel ring has a radius of 50mm and a cross-sectional area of 400mm 2 . A current of 0.5 A flows in a coil wound uniformly around the ring and the flux formed is 0.1mWb
what is gravitational law
The driver of an SUV slammed on the breaks when he saw a tree 52 m away blocking the road. The SUV slowed down at a constant rate of 4.0 m/s2 for 3.6 s before reaching the tree. Wh
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