Physics
The incomplete diagram of an electric bell is given in figure. Draw winding of coil on the core and complete the electric circuit in the diagram.
Electro-Magnetism
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Answer
The completed diagram of the electric bell with winding of coil drawn is shown below:
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Related Questions
Show with the aid of the diagram how a wire is wound on a U-shaped piece of soft iron in order to make it an electromagnet. Complete the circuit diagram and label the poles of the electromagnet.
Figure shows the current flowing in the coil of wire wound around the soft iron horse shoe core.
(a) State the polarities developed at the ends A and B.
(b) How will the polarity at the ends A and B change on reversing the direction of current.
(c) Suggest one way to increase the strength of magnetic filed produced.
A charge moving in a magnetic field in a direction other than the direction of the magnetic field experiences a force called :
- Lorentz force
- Nuclear force
- Electric force
- Gravitational force
Magnetic force is given by :
- F = IB/l
- F = IBl
- F = l/IB
- F = Il/B