Maharashtra Enterprises

Ambala Cantt, Ambala, Haryana

To plot Frequency Vs Current Characteristics of LCR circuit, connection in series parallel. Instrument comprises of 1 Resistance, 1 Capacitors, & 1 Insductance connected & connections brought out at Terminals. 2 AC moving coil meters to measure voltage & current with Audio Frequency Function Generator TE-93. Dimension 10"x8"x3".

VI Characteristics of Diode Valve. Instrument consists of DC Regulated Power Supply 0-300VDC/30ma, 6.3V AC/1Amp, two meter for voltage & current measurement, valve diagram Printed, connections of Supplies & Valve brought on terminals. Dimension : 10"x8"x4"

Activity : To measure e/m of Electron by Thomson Method Bar Magnet method. One method of demonstration modern physics in the controlled bending of stream of high speed electrons in a magnetic field. The actual measurement by students of the ratio of the charge on the electron to its equally minute mass imparts a stimulating sense of achievement. e/m apparatus has been perfected to the point where it is possible for this fundamentally important measurement to be carried out with good accuracy. Power Supply : E.H.T. 800V D.C. for cathode Voltage to C.R. tube. 0-100 volts D.C. with moving coil meters to measure the Deflecting voltage either y1 or y2 Plates.Cathode Ray tube fitted on wooden frame with scale divided in centimeters. Deflecting Magnetometer with permanent magnetic compass included. Compass stand, a pair of Bar Magnet.

The noted oil drop experment by which Prof. Robert A. Millikan measured the charge on the electron can be repeated by the student with this equipment. The latest improved design is based upon the experience and recommendation of teachers.Principal elements of the assembly are specially designed condenser, a light source and a measuring microscope. The All are mounted on a common support. Consisting of a heavy cast iron base which is mounted on a steel pillar that carries the microscope and the lamp house. The microscope can be adjustedsmoothly by slow motion screws in the horizontal as well as in the vertical direction. Atomizer is also fitted on the same carriage. The apparatus does not need any critical adjustment and the oil drops appear in microscope within seconds. Microscope is provided with micro meter scale.