School Physics Electricity Lab

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A low distortion signal generator with four decade ranges selectable by rotary switch. Sine waveform and square waveform selectable by membrane switch with LED indicator. A built in speaker is provided for audible frequencies and is selectable by membrane switch.

Used with the experiments of Wave demonstration kit (SA009).

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It consists of double pole knife switch mounted on a plastic base with rubber feet and 4mm terminals facilitating connection by 4mm plug leads or bare ended leads.

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The small Tesla Coil produces an alternating high voltage potential which attracts or repels free electrons. When the electrons collide with the gaseous atoms and molecules inside the globe, the gas particles are ionized creating even more electrons, as well as, positive ions. A plasma is formed. When electrons return to the ionized gas, light is produced. Touching the globe with your finger provides a ground, an addition source or sink of electrons. You can also observe super, neat, wow effects by moving a fluorescent tube or neon light near the plasma globe. They will light up in your hands.

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An apparatus for determining the temperature coefficient of resistance. It consists of a coil of insulated iron wire wound non-inductively on an insulating former and connected to terminals. The coil is enclosed in a glass test tube with a stopper. Thermometer not included in the scope of supply.

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It is used to determine variation of resistance of a conductor with changes in length, material, diameter and the effect of series and parallel combination of resistances, this item is used. Ohm's Law may also be studied. The whole unit is mounted on a sheet-metal base. There are 4 nos. of separate wires having length of 1 m each. Each wire may be attached separately to binding posts. Ohm's Law may also be studied with the help of DC power supply and multimeters.

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Learning Objectives/experiments< Measurement of resistivity of semiconductor by four probemethod.< Determination of Energy Band Gap.< Measurement of Resistivity of Semiconductor by Two ProbeMethod.

Scope of delivery4 1 Four probe power supply4 1 P-Type Ge Crystal4 1 Oven4 1 Four probe arrangement4 1 Sample crystal (p-type Ge)4 1 PT 100, Temperature sensor (Fixed)4 1 Screw driver4 1 Power cord4 1 N-Type Ge Crystal (Optional)

Features1. Built-in Temperature sensor with seven segment digitaldisplay.2. Four probe Arrangement can be used as two probe withoutany changes.3. Dual Purpose seven segment digital display.4. Multi-Turn Pot for fine tunning of Current.5. Pointed spring loaded probes ensure good electrical contactswith the sample.6. Different types of Semiconductor Sample can be used formeasurement.

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It is used for investigating resistivity. The board is fitted with 4 mm terminals connected to a length of resistance wire which runs along a scale. Three different resistance wires with ratios of cross sectional area 1:2:4 (approx.) are provided. Sockets are provided on it so that the board can be used as a 40 cm bridge or potentiometer.

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Plate capacitor used to investigate the relationship between charge, voltage and capacitance, as well as determining the dielectric constants. It is a high accuracy capacitor for electrostatic experiments. The fixed and mobile plate is highly insulated. The solid aluminum plate capacitor around 150mm diameter and 3mm thick. The capacitance is adjustable from 2.3 to 280pF. It consists of a fixed and a movable plate on a guide rail. A centimeter scale is used to read the plate spacing. The device is supplied with three dielectric sample plates made of acrylic, PVC and cardboard. Supplied without LCR meter.

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It consists of nickel plated brass strips and connecting pieces with 4mm socket terminals, fitted on wooden base. Length 100cm long with plastic scale. Supplied without jockey.

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PHYSICS, Class XII, Part - 1, Chapter - 3, Current electricity.

These resistance boxes incorporate specially designed switches for precision and rapid measurement of resistance. The dial assembly is mounted on a panel and enclosed in a box for protection from dust and acid fumes.

Salient features :

• It uses metallic film resistance which is better than coils.
• 4 mm safety sockets are provided.

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It is housed in a metal box. Three dial knobs are mounted on a panel having range.

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These resistance boxes incorporate specially designed switches for precision and rapid measurement of resistance. The dial assembly is mounted on a panel and enclosed in a box for protection from dust and acid fumes.

Salient features:

• It uses metallic film resistance which is better than coils.
• 4 mm safety sockets are provided.

Specification :

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Each dial operated by a knob. Special type of switches are provided to minimize the residual capacitance.

Salient features:

• High quality switches to minimize residual capacitance.

Decade capacitance allows easy selection of capacitance of values in ten equal steps. The device is housed in a plastic box with 4mm safety sockets.

Details :

• SH125:10 x100 µf 
• SH131 :10 x 1 µf
• SH114:10 X 10 µf

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A device for demonstrating conductive & inductive electricity. It consists of two parallel plates mounted on insulated pillars so that the space between the plates can be adjusted and the glass or acrylic dielectric (insulated plates between them) can be removed or placed between the plates. Also included a pair of pith balls suspended by threads from pillars. Operatable on Wimshurst Machine.

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Details :

• SE610 Ammeter DC 0-1Amp
• SE612 Ammeter Double Range DC 0-1/5 Amp
• SE615 Milliammeter DC 0-100mA
• SE619 Voltmeter DC 0-10V
• SA518 Millivoltmeter DC 0-50mV
• SA520 Galvanometer DC 30-0-30 (20μA/Div)

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Each dial operated by a knob. Special type of switches are provided to minimize the residual capacitance.

Salient Features:

• High quality switches to minimize residual capacitance.
• 4 mm safety sockets are provided.

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SCIENCE, Class X, Chapter - 13, Magnetic effects of electric current.

Resistance wire wound on a pipe having dia 5.6cm,perforated cover for touch protection. Electrical connections via three 4 mm safety sockets. It can be used as fixed resistor and potentiometer. Fourth socket is used as earth.

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Experiments :

• Exp-1 To show the change in intensity of bulb with adding cells.
• Exp-2 To interrupt the electricity by using push switch.
• Exp-3 The series and parallel combination of bulbs.
• Exp-4 To demonstrate the effect of variable resistance.
• Exp-5 The working of change over switch.
• Exp-6 To demonstrate the difference between diode and resistance.
• PHYSICS, Class Xll, Part-1, Chapter - 3, Current electricity.
• SCIENCE, Class X, Chapter - 12, Electricity.
• Chapter - 13, Magnetic effects of electric current. 

Special Features :

• Vertical demonstration for whole class.
• 4Name of component & symbol printed on modules.
• 4Each component fitted with magnet on four grooves provided on rear side of panel. 

Product Details:

It is an introduction to the basic principles of electricity through experiments. This kit is specially framed for the students to learn the basic electricity phenomenon.

Experiments :

• Exp-1 To show the change in intensity of bulb with adding cells.
• Exp-2 To interrupt the electricity by using push switch.
• Exp-3 The series and parallel combination of bulbs.
• Exp-4 To demonstrate the effect of variable resistance.
• Exp-5 The working of change over switch.
• Exp-6 To demonstrate the difference between diode and resistance.
• PHYSICS, Class Xll, Part-1, Chapter - 3, Current electricity.
• SCIENCE, Class X, Chapter - 12, Electricity.
• Chapter - 13, Magnetic effects of electric current. 

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It consists of a phototransistor mounted on a plastic box with 4mm sockets; with transistor symbol.

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It consists of a metal base fitted with 4mm socket terminals, Supplied with jockey.

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Experiments :

• Exp-1 To study the working of galvanometer.
• Exp-2 Conversion of galvanometer as DC voltmeter.
• Exp-3 Conversion of galvanometer as AC voltmeter.
• Exp-4 Conversion of galvanometer as DC current meter.
• Exp-5 Conversion of galvanometer as AC current meter.
• PHYSICS, Class XII, Part - 1, Chapter - 4, Moving charges & magnetism, The Moving Coil Galvanometer. 

The kit has been designed to demonstrate the basic working principle of AC or DC analogue ammeters or voltmeters with interchangeable plastic scales. The whole kit is provided with big size demonstration meter, set of five AC/DC dials, load resistance and a power supply to operate the meter.

Scope of Supply:

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Experiments :

• Exp-1 Capacitance of series & parallel combination of plate capacitors.
• Exp-2 Effect of area of plates on capacitance.
• Exp-3 Effect of distance between the plates on capacitance.
• Exp-4 Effect of different dielectric material on capacitance.
• PHYSICS, Class XII, Part-1, Chapter - 2, Electrostatic potentials.

Special Features :

• Constant area of plates show capacitance C with variation of distance d ( C ∝ 1/d).
• The d can be increased with spacers in steps on 1mm.
• U shaped small bench with marking in cm eitherside.
• 3 different dielectric sheet.
• Large size plates, suitable for demonstration to a group of students.

Scope of Supply: