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Find the voltage across the light bulb when this device is plugged into an 120V outlet.

Find the voltage across the light bulb when this device is plugged into an 120V outlet.

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Find the voltage across the light bulb when this device is plugged into an 120V outlet.

### Diagram Explanation This image represents a simple electrical transformer circuit used to power a light bulb. 1. **Transformer Components:** - The diagram consists of two main rectangular components which symbolize the transformer cores. - Each core has coils wrapped around it, indicating the primary and secondary windings of a transformer. The primary coil is connected to the input voltage, while the secondary coil is connected to the output. 2. **Electric Input:** - On the left side, the diagram shows a plug with an inscription "120 V," indicating the input voltage supplied to the primary coil of the transformer. 3. **Coils/Windings:** - The primary winding on the left is connected to the 120 V power source. - The secondary winding on the right is connected to a light bulb. 4. **Load:** - A light bulb on the right represents the electrical load. The light bulb is connected to the secondary winding. ### Functionality - **Principle of Operation:** - The transformer operates on the principle of electromagnetic induction. When AC voltage is applied to the primary winding, it creates a magnetic field in the core, which induces a voltage in the secondary winding. - **Purpose:** - This setup is used to transfer electrical energy from the primary coil to the secondary coil, potentially adjusting the voltage up or down based on the winding ratio, to power a device (in this case, a light bulb). Overall, this diagram provides a visual representation of how transformers function in a basic circuit to transfer electrical power to a load.
Transcribed Image Text:### Diagram Explanation This image represents a simple electrical transformer circuit used to power a light bulb. 1. **Transformer Components:** - The diagram consists of two main rectangular components which symbolize the transformer cores. - Each core has coils wrapped around it, indicating the primary and secondary windings of a transformer. The primary coil is connected to the input voltage, while the secondary coil is connected to the output. 2. **Electric Input:** - On the left side, the diagram shows a plug with an inscription "120 V," indicating the input voltage supplied to the primary coil of the transformer. 3. **Coils/Windings:** - The primary winding on the left is connected to the 120 V power source. - The secondary winding on the right is connected to a light bulb. 4. **Load:** - A light bulb on the right represents the electrical load. The light bulb is connected to the secondary winding. ### Functionality - **Principle of Operation:** - The transformer operates on the principle of electromagnetic induction. When AC voltage is applied to the primary winding, it creates a magnetic field in the core, which induces a voltage in the secondary winding. - **Purpose:** - This setup is used to transfer electrical energy from the primary coil to the secondary coil, potentially adjusting the voltage up or down based on the winding ratio, to power a device (in this case, a light bulb). Overall, this diagram provides a visual representation of how transformers function in a basic circuit to transfer electrical power to a load.
Expert Solution
Introduction:

Transformer is device which works on principle of electromagnetic induction. It is used to increase the voltage or decrease it at output by this principle. The output voltage or current to input current or voltage is given as

VsVp=NsNpAndIpIs=NsNp

Where Ns,Np are number of turns in secondary and primary coil.

 

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