3b-scientific Resistance Apparatus User Manual download pdf

3B SCIENTIFIC

PHYSICS

Resistance Apparatus 1009949

Instruction sheet

09/12 ADP BJK

1 4-mm connectors

2 Base plate

3 Resistance wires

1. Safety instructions

If the current is too high, it can lead to the resis-

tance wires becoming destroyed.

• Do not exceed the stated values for current.

The resistance wires are thin and can stretch or

snap.

• Always carry the device by the base plate,

never try to lift the wires.

2. Description

The resistance measurement bridge is a useful

tool for exploring the factors that contribute to a

wire’s overall resistance. It is used to investigate

the dependency of electrical resistance on con-

ductor length, conductor cross-section and ma-

terial.

The resistance measurement bridge is made up

of six wires laid out side by side on a base plate

with both ends connected to 4-mm sockets.

3. Technical data

Material Diameter Current

Constantan 1 mm 2 A max.

Constantan

0.7 mm 2 A max.

Constantan 0.5 mm 1.5 A max.

Constantan 0.35 mm 1 A max.

Brass 0.5 mm 2.5 A max.

Dimensions: 1085 x 70 x 55 mm

Length of wires: 1000 mm

Weight: approx. 1.5 kg

4. Sample experiments

It is recommended to use the analogue multime-

ter AM51 (1003074) to determine the resistance

of the wires.

To avoid measuring errors, it is necessary to

take account of the resistance of cables.

• The multimeter leads should be shorted

together so that only their resistance is

measured and the meter should then be

calibrated to register that resistance as zero.

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3B SCIENTIFIC 1
PHYSICS 1

Summary of Contents

Page 1 - PHYSICS

3B SCIENTIFIC® PHYSICS 1 Resistance Apparatus 1009949 Instruction sheet 09/12 ADP BJK 1 4-mm connectors 2 Base plate 3 Resistance wire

Page 2

Elwe Didactic GmbH ▪ Steinfelsstr. 5 ▪ 08248 Klingenthal ▪ Germany ▪ www.elwedidactic.com 3B Scientific GmbH ▪ Rudorffweg 8 ▪ 21031 Hamburg ▪ Germany

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3b-scientific Resistance Apparatus User Manual

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