A rectangular coil can rotate in a magnetic field. The two ends of the coil are soldered respectively to the two halves of a commutator. Two carbon brushes are made to press lightly against the commutator and when these are connected in a circuit with a battery and a rheostat, the coil rotates. This is a description of

Similar Questions

Nuclear fission is preferred to nuclear fusion in the generation of energy because? ...

The advantages of the thermoelectric thermometer include the following characteristics except that i...

According to kinetic molecular model, in gases ...

If a tube of small radius opened at both ends is placed in a liquid, the liquid will ...

When an astronomical telescope is in normal adjustment, the focal length of the objective lens is 50...

A semiconductor diode is used in rectifying alternating current into direct current mainly because i...

A block is acted upon by TWO horizontal forces as illustrated in the diagram above. The block accele...

In the diagram above, the direction of the force between N and S in the magnetic field is ...

Calculate the electric field intensity between two plates of potential difference 6.5V when separate...

In order to convert a galvanometer into an ammeter ...