Carbon film resistor, Physics

MANUFACTURING:

Pure carbon is deposited on ceramic substrate by thermal decomposition of hydrocarbon at 10000C. The sheet resistance of film is controlled by controlling the thickness of the carbon film.

SPECIFICATIONS:

Range of values                                                           1 ohm to 107 ohms

Temperature coefficient of resistance                              -1000pm/0C

Stability                                                                        < 3%

Tolerance                                                                     > 2%

Working voltage                                                            500 volts

Working temperature                                                     -40 to 1200C

APPLICATIONS: These resistors are used in measuring instruments where close tolerances are required. These resistors have better stability compared to carbon composition resistors. Voltage coefficient is small. Temperature coefficient is negative. For small value, size of carbon composition resistor. These resistors have no ability to withstand electrical overloads.


 

 

Posted Date: 7/9/2012 4:26:39 AM | Location : United States







Related Discussions:- Carbon film resistor, Assignment Help, Ask Question on Carbon film resistor, Get Answer, Expert's Help, Carbon film resistor Discussions

Write discussion on Carbon film resistor
Your posts are moderated
Related Questions
Transistor: An active semi-conductor device with three terminals that is emitter base and collector is known as transistor. Types of Transistor: There are two types of

what is poission''s equation?Establish poisson''s equation for space distribution of charges.discuss its significance.

Q. Figure s (a) and (b) show refraction of a ray in air incident at 60°with the normal to a glass Answer According to the given figure for the glass-air interface:

help by post offoce box explan rasistance of a wire

Which atomic model did Erwin Schrodinger create? Schrodinger's wave equation was based on the Heisenberg uncertainty principal that the position and velocity of an electron can

Explain the Merits of Vacuum Diode over Semiconductor Diode (i)  Vacuum Diodes can withstand high reverse voltages (ii)  Vacuum Diodes can operate at fairly high temperature

How is coiled, twisted or roped fibers terminated? Generally terms the same techniques as with PMMA apply, because this optics are no more that 0,75mm diameter PMMA fibers bunc

Q. Explain about end rule? When glanced from one end if the current through the solenoid is along clockwise direction the nearer end corresponds to South Pole and the other end

Q. Why there is no horizontal acceleration during projectile motion? Ans: The gravitational force (F)acting on the particle during its flight has only vertical component i.e. F(co

Displacement: - The modification in position of a body in a certain direction is known as displacement. It is a vector function and its unit in SI system is meter.