Higher Physics Lab Electricity & Magnetism



Exp-1 To investigate the equipotential lines of electric fields.
Exp-2 To draw the equipotential lines for bar electrode.
Exp-3 To draw the equipotential lines for disc electrode.
Exp-4 To draw the equipotential lines for ring electrode.

  • Multipurpose power supply.
  • Point needle for tracing the field line.
  • Easy setup and connection.
  • Electrical safety tested.
  • Equipotential lines.
  • Electric field lines.
  • Surface potential.
  • Voltage.

Principle and Working:
An equipotential line is a collection of points in space when each point has the same value of electric potential. In the present setup, a voltage is applied between a pair of electrodes placed in a plastic trough filled with distilled water and voltage is measured at different points with a needle connected to a multimeter. The points are marked on another graph paper with reference to the graph placed under the trough.


Cat. No. Item Name Qty.
CA556 Trough 1
SP730 Needle 1
C7862 Rod with socket 1
SE067 Digital multimeter 1
SG110 Cylindrical base 1
C7863 Bar electrode 2
C7864 Disc electrode 2
C7865 Ring electrode 1
C7866 Stand rod 1
SW092 Boss head 1
SE080 Power supply (2-12 V AC) 1
SN204 Flexible plug lead red 2
SN201 Flexible plug lead black 2

Electricity & Magnetism Experiments