tender for purchase of equipments ( s.no 1 to s.no 21 ) for physics department , purchase of equipments , joule calorime copper vessel, battery eliminator-3a, (2,4,6,8,10,12 v), tubular rheostat 20-3.3a, one way plug key, analog type dc ammeter (0-2a), voltmeter (0-5v), thermometer (alcohol), stop clock , ic regulated battery eliminator ic regulated, input: 230v ac; output: 0-12v dc in steps of 2v; capacity: 1a or 2a , galvanometer moving coil type, 30-0-30 scale, unbranded with bhel specification-sensitivity 0.143mm/v , voltmeter dc voltmeter; range 0-10 v, analog , ammeter dc (0 - 2 amp) , parallelogram apparatus parallelogram law of forces apparatus fitted with stand , decade resistance box resistance box 12 month warranty (dial type) -manganin coil- 2 dials , sonometer apparatus sonometer with meter scale attached along with knife edge, tuning forks set 256, 384, 512 ranges, hammer, slotted weight - 500 gm each to a total of 3 kg. brass wire (5 m) , travelling mircroscop branded travelling microscope 0- 200 mm horizontal and 0-150 mm vertical measurement , potentiometer it features a 1-meter to 10-meter constantan/manganin wire stretched on a wooden or sunmica baseboard with a millimeter scale. it includes 4mm brass terminals, a pencil jockey for contact, wire options (10 wires), and a typical resistance range of 10-20 ohms, ideal for high-precision voltage measurements. , viscosity apparatus stokes apparatus with metre scale attached and long cylindrical glass jar, glass beads small size (1 box), screw gauge (0-15 mm) , rheostat high-grade ceramic tube, oxidized resistance wire, 0.5a-5a, range 10ω-100ω. , deflection magnetometer apparatus deflection magnetometer apparatus with compass box and two short bar magnets , solar cell kit the apparatus consist of variable dc power supply, led, solar cell and two multimeters (or an ammeter and a voltmeter). a variable dc power supply of 0-5v. light source is provided by led. the illumination intensity of the led can be controlled , wheatstone bride kit series arm: four decade dials in steps of thousands, hundreds, tens, & units of ohms. ratio arm: the ratio arm of the bridge is capable of selecting multiplying factor of 0.001, 0.01, 0.1, 1, 10, 100, 1000 for resistance measurements. two press keys are provided, one marked b is for battery & one marked g is for galvanometer one toggle switch is provided for internal battery a sensitive galvanometer is provided in the bridge. , ohms law verification kit battery eliminator-3a, (2,4,6,8,10,12 v), tubular rheostat 20-3.3a, one way plug key, analog type dc ammeter (0-2a), voltmeter (0-5v), standard resistance coil of 1, 2 ohm (2-set) wound on a wooden bobbin , boyles law apparatus the apparatus includes the quill tube, a retort stand, a clamp, and a mounted meter scale. quill tube specifications: length: approximately 50 cm. bore diameter: uniform bore, roughly 1 mm to 2 mm. construction: glass tube with one end sealed. trapped substance: a mercury pellet (or thread) of length 10 to 15 cm is introduced to enclose a column of air. mounting: attached to a half-meter or meter scale. , torsion pendulum torsional pendulum metallic disc, symmetrical masses and pendulum stand, steel wire , compound bar pendulum one meter long iron strip well painted with holes at a distance of every 5 cm and also with pair of brackets and a heavy base table top stand with stop clock , helical spring apparatus structure: a rigid support mounted on a heavy metal base, typically cast iron, to ensure stability during tests. springs: high-tensile steel spiral springs, typically (approx 25 mm) diameter, (100 mm) long. measurement scale: a vertical steel meter scale, usually with (1mm) graduations, for precise deflection measurement. loading mechanism: a, typically (50g), hook-attached weight hanger at the bottom.pointer: a fine pointer attached to the bottom of the spring moves along the scale. accessories: includes a set of slotted weights (e.g., (6times 50g) or similar sets) for incremental loading. , meter bridge type: 1 m length, with uniform wire (resistance wire) material: constantan or manganin (low temperature coefficient) scale: 0-100 cm, engraved or printed base: wooden or metal, rigid, non-conductive support joints / terminals: brass or copper, fixed for connections 2. galvanometer type: analog, moving coil or digital (for null detection) range: sensitive to detect micro-ampere currents internal resistance: high, typically ~100 ω or as specified 5. cells / power supply type: leclanché cells (1.5 v each) or dc power supply number: 2-4 cells in series (or supply ~3-6 v) 1