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Consider the sketch of the electromagnet in the figure below. Which components could you change to increase or reduces the strength of the electromagnet? Describe your answer.
To enhance the strength of the magnet, the voltage of the power source could be increased, the number of the wraps could be increased, or ferromagnetic cores could be added. To reduce the strength of the magnet, the voltage of the power source could be reduced, fewer wraps could be used, or hollow or nonmagnetic cores could be used
#question.give the constraint relation between .
how to measure least count of the instruments?
The cold filament resistance of a light bulb is 20.0). The bulb consumes 75 W when it is operating from a 120-V source. By what factor does the start-up current in the bulb
Explain Squirrel- cage rotor Squirrel- cage rotor having of a slotted laminated core of sheet-steel. The slots of the rotor are not always parallel to the slots on the stator,
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A bomber plane moves horizontally with a speed of 500 m/s and a bomb released from it, strikes the ground in 10 sec. angle at which it strikes the ground will be (g=10m/s) 1. tan
In a single slit diffraction pattern the distance between the first minimum on left to first minimum on the right is 0.054 cm for a light of wavelength 5890 Å. Determine
A beam of white light is passed through a diffraction grating and the resulting spectrum is allowed to fall on a screen. Which color of light that undergoes the greatest devi
Shell type transformers . In this type of transformer the iron core surrounds the copper windings. The core is in the shape of numeral 8. The entire flux passes by the central pa
What do you mean by Normal shift? How can you calculate total internal reflection? Mention an application of total internal reflection.
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