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To demonstrate the principle of the screw jack and to determine the relationship between friction and mechanical efficiency. Comprises a heavy cast iron base supporting a steel screw jack. Top of the jack carries an aluminum pulley of dia. 100 mm. Another smaller pulley of dia. 38 mm. with rod is held by a bosshead to the rod for guiding the cord from the main pulley. Overall height approx. 200 mm. Supplied with cord but without masses.

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Physics & Electronic Laboratory Apparatus

MS-116 PVG SCREW JACK

Hard wood reinforced with metal at the ends, length 300 mm., with three ball bearing wheels, a quick release triple impulse spring pin, with two removable metal pins at each end to enable trolleys of equal mass to be stacked or to give anchoring points for accelerating cords. ELASTIC CORDS For accelerating trolleys, rubber length 175 mm. with eyelet at both ends. TROLLEY MASSES Steel mass equal to the mass of one trolley, with rubber pads. This reduces the number of actual trolleys. SPRINGS - Steel springs to use with dynamic trolleys in the investigation of longitudinal wave motion, length x diameter 50 x 15 mm. Attached by spring holders to the front or rear of a dynamic trolley. In this way a number of trolleys can be joined together. SPRING HOLDER For attaching up to four springs side by side to the back and front of wooden trolleys. Metal plate 115x15 mm. length x width with hole at each end and with two central side metal flaps. TROLLEY RUNWAY Gives a smooth flat easily inclinable surface for experiments. With metal side rails and plastic feet. Dimensions -1.5 x 0.3 M.

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Physics & Electronic Laboratory Apparatus

MS-117 PVG DYNAMICS TROLLEYS

Demonstrates the Newton’s third low of motion consists of a metal frame of plated steel rods and metal base with five steel balls of19 mm. diameter . Dimensions, 250 x 175 x 225 mm.

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Physics & Electronic Laboratory Apparatus

MS-118 PVG NEWTON’S CRADLE

DRILLED BALLS SET

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Physics & Electronic Laboratory Apparatus

MS-119 PVG DRILLED BALLS SET

Light alloy, with single hole to take rods up to 13 mm. diameter.

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Physics & Electronic Laboratory Apparatus

MS-12 PVG WASHERS

Used for collision and pendulum experiments. A set of Twelve piece assortment of solid, hooked, and drilled balls with both 25 mm. and 38 mm. diameters. Supplied in a foam lined plastic box

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Physics & Electronic Laboratory Apparatus

MS-120 PVG ASSORTEDBALLSET

Metal with bakelite knobs, for connecting to any vertical or horizontal rod support. Up to three pendulums can be connected on the same horizontal line.

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Physics & Electronic Laboratory Apparatus

MS-121 PVG PENDULUM CLAMP

LINEAR AIR TRACK

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Physics & Electronic Laboratory Apparatus

MS-122 PVG LINEAR AIR TRACK

Specially suitable for use with linear Air Track. With a flexible base terminating in a tapered adopter with 25 mm. outer diameter. Works on 220-240 Volt 50 Hz A.C

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Physics & Electronic Laboratory Apparatus

MS-123 PVG AIR BLOWER

Placeholder

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Physics & Electronic Laboratory Apparatus

MS-124 PVG METAL TROLLEY

With Optical gates, to determine the value of ‘g’ by timing the fall of a steel ball. Consist of a casted stable base plate screwed with 12 mm. dia. steel rod. Two plastic bases mounted on the rod to hold two units. Solenoid unit having a mumetal core which ensures immediate release of ball on energizing, gate switch unit comprises a hinged steel plate held against a permanent magnet so that with proper adjustment the plate falls promptly with the impact of falling ball. Connections with color coded 4 mm sockets. Millisecond timer is used, withthisapparatus.Completewithsteelballsofdia.16&19mm.

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Physics & Electronic Laboratory Apparatus

MS-125 PVG ‘G’ BY FREE FALL APPARATUS

Mains operated electronic timer reads 1 ms to 9999s, with large display. With a pairs of push button switches for start and stop function. Provided with a reset button also. In a strong metal case with on/off switch and 1.5 m. mains lead. Technical Specification

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Physics & Electronic Laboratory Apparatus

MS-126 PVG MILLISECOND TIMER