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

A conductor has a diameter of 1.00 mm and length 2.00m. if the resistance of the material is 0.1Ω,...

A transformer is connected to a 250 V a.c. supply. The primary coil has 5000 turns and the secondary...

The diagram above shows the speed-time graph of a car. If the car covered a total distance of 600m i...

The volume of a stone having an irregular shape can be determined using? ...

The ice and steam points of a certain thermometer are -20° and 100° respectively. ...

Which of the following statements is correct about cathode rays? They are fast moving ...

The pair of physical quantities that are scalar only are ? ...

The diagrams above illustrate electrical connections to the element of an electric pressing iron.In ...

A stone of mass 300g is released from rest from the top of a building of height 100m. Determine the ...

The shortest length of the air column in a resonance tube at resonance is 0.12m and the next resonan...