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MANUFACTURING: Two processes are used manufacturing.
Coated film: A mixture of carbon, filler and binder is coated on a ring of insulating material. The surface of the film is processed to minimize abrasion of the film by the sliding contact tap. The contact is of brass or phosphor bronze. The contact is sparing loaded against element.
SPECIFICATIONS
Range of values 100 ohms to 10 mega ohm
Power rating 1/2W to 2.5W
Tolerance 20% for 100 ohms to 1 mega ohm
30% above 1 mega ohm
Voltage coefficient 0.005% volt
APPLICATIONS: These are used as present potentiometer in TV, in brightness and contrast control, radio and measuring instruments.
What are spatial effects? Representations of shooting stars, nebulas, comets and others, made with frequently thousands of individual animation illuminator and fibers.
what is power of lens?
Electric Field: The electrical field because of a charge can be described as the space around the charge.
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
Where do you find the null points in the combined field due to the earth and a bar magnet, when i) the N-pole of the magnet is taken towards the north of the earth, ii) the
Two wattmeters indicate 10 kW and 3 kW respectively when linked to measure the input power to a 3-phase balanced load, the reverse switch being operated on the meter showing the 3k
Refracting telescopes, if uncorrected, suffer from chromatic aberration. Chromatic aberration occurs because: a) red light is focused more strongly than blue light b)
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James Watt was the first inventor.
Aiming at the Monkey Slow Assume a zookeeper must shoot a banana from banana cannon to a monkey who hangs from the limb of a tree. This particular monkey has a habit of droppin
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