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Affirmations for Abundance success, Health & Happiness in life-morning &...

Positive Affirmations for Abundance success, Health & Happiness in life, listen every morning and night while sleeping


positive Affirmations for Abundance success, Health & Happiness in life, listen every morning and night while sleepin

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Thermistor-To determine the values of energy gap, Eg-limiting value of the resistance Ro

Aim: 1 . To determine the values of the energy gap E g , for a given thermistor for two different values of current passing through it.  2.   To determine the limiting value of the resistance R o. thermistor Conventional carbon and wire wound resistances have very less effect of temperature on their values of resistance. There is about 0.4  %  change in the resistance value per degree change in the temperature. They are also linear i.e. they obey Ohm’s law. However, there is a class of resistances which are temperature sensitive and show a significant change in their resistance values with temperature. Such resistances are called thermistors. A change of about 6% to 8 % in their resistance values is observed with change in temperature. They are non-linear resistances. Thermisters are used as current limiters, temperature sensors, self-resetting overcurrent protectors and self-regulating elements.  The first NTC thermistor was discovered in 1833 by Mich...
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Thomson method-To determine the value of e/m of electron using the bar magnet method.

AIM:  To determine the value of e/m of electron using the bar magnet method. To determine the value of e/m of  electron  using the bar magnet method.   J.J. Thomson, the discoverer of the electron, first determined in 1897 the ratio of the charge  e  of the electron to its mass  m  by applying electric and magnetic fields to a narrow beam of cathode rays. A Cathode Ray Tube (CRT) is a convenient device for determining e/m ratio of the electron. A narrow electron beam is produced in it and the beam can be manipulated by impressed electrical and magnetic fields over a small length of the electron path. The electric field produced by a short length of deflection plates and the magnetic field is applied from outside over the same length. APPARATUS:  A cathode ray tube (CRT), a power supply, two bar magnets, deflection magnetometer, and wooden frame with scales fixed on its arms. FORMULA        ...
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Cathode ray oscilloscope (CRO) for voltage (AC AND DC)

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