Physics

Ohm's law

Self-induction

Capacitor in the alternating current circuit

A coil in an alternating current circuit

RC high-pass filter

RC low-pass filter

Resonant circuit

Parallel resonant circuit

Series resonant circuit

Warm-up time of an energy-saving lamp

Measurement of basic constants: length, weight and time

Principle:

Caliper gauges, micrometers and spherometers are used for the accurate measurement of lengths, thicknesses, diameters and curvatures. A mechanical balance is used for weight determinations, a decade counter is used for accurate time measurements. Measuring procedures ...

Moments

Principle:

Coplanar forces (weight, spring balance) act on the moments disc on either side of the pivot. In equilibrium, the moments are determined as a function of the magnitude and direction of the forces and of the reference point.

Tasks:

Modulus of elasticity

Principle:

A flat bar is supported at two points.It is bent by the action of a force acting at its centre. The modulus of elasticity is determined from the bending and the geometric data of the bar.

Tasks:

1. Determination of the characteristic ...

Mechanical hysteresis

Principle:

The relationship between torque and angle of rotation is determined when metal bars are twisted. The hysteresis curve is recorded.

Tasks:

1. Record the hysteresis curve of steel and copper rods.
2. Record the stress-relaxatio ...

Hooke's law

Principle:

The validity of Hooke's law is determined for two helical springs with different spring constants. The elongation of the helical spring, which depends on the deforming force, is studied by means of the weights of masses. For comparison, a rubber band, for which no pr ...