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  $70.90 ♡ +

  Conductors On Insulated Stands

  These Conductors on Insulated Stand are for electrostatics experiments. Comprises one each of a spherical, conical and cylindrical conductor each mounted on insulated rod with a cast iron base.

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  $62.75 ♡ +

  Conductivity putty

  A versatile aid for the teaching of resistivity and the dependence of resistance on the length and cross sectional area of a conductor. The cylinder of conductivity putty, 60mm long x 20mm dia. has a resistance of 20-Ohms. 100g pack. In senior level the conductivity putty can be used to show how the capacitance of a sphere varies with the radius by using a digital coulomb meter.

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  $22 ♡ +

  BIMETALLIC STRIP (with metal handle)

  Two different metals rolled in the form of a strip – not riveted. Demonstrates unequal expansion of different metals when heated. Size dimensions: 150 x 10mm with metal handle.

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  $40.20 ♡ +

  Conductivity rings

  Demonstrates very simply the difference in heat conductivity between four different metals – iron, copper, brass and aluminium. Each metal is embossed with either an ‘Fe’ (iron), ‘Cu’ (copper), ‘Br’ (brass) and an ‘Al’ (aluminium) respectively to identify them. The four 20 x 125mm ...

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  $145 ♡ +

  CONDUCTIVITY METER [Handheld]: Dual Range 0 to 2000 uS-cm Multi Range 0 to 200 a…

  Quality Conductivity Meters for use in the school laboratory for conductivity measurements.

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  $31.45 ♡ +

  CONDUCTIVE PAPER [Conductivity Paper]

  This black electrical conductive paper (also known as Teledeltos Paper) has a high resistance coating. Suitable for plotting electric fields by means of the ‘equipotential points’ method. A single sheet measures 210mm x 297mm. There are 20x grids with a plotting area of 200 x 250mm. (ref. NCEA Physics 3.1 internal assessment).

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  $9.90 ♡ +

  Compound bars

  Demonstrates curvature caused by unequal expansion of two dissimilar metals. Metals riveted together. When heat is applied bar bends. Dimensions: 220mm x 30mm (330mm including wooden handle). (Note: Fishtail burner head or similar required to be fitted to bunsen for heating. Do not use point source heat as this can damage the compound bars.

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