| An equation that relates the number of turns in the coils of transformers to the potential differences across the coils. | Turns Ratio Equation |
| What does the Turns Ratio Equation determine in transformers? | The Turns Ratio Equation determines the relationship between the number of turns in the coils and the potential differences across the coils. |
| A transformer that increases the voltage in the secondary coil by having more turns on the secondary coil compared to the primary coil. | Step-Up Transformer |
| How does a step-up transformer affect the number of turns in its coils? | A step-up transformer increases the number of turns in the secondary coil. |
| A transformer that decreases the voltage in the secondary coil by having fewer turns on the secondary coil compared to the primary coil. | Step-Down Transformer |
| How does a step-down transformer affect the number of turns in its coils? | A step-down transformer decreases the number of turns in the secondary coil. |
| The ratio of the voltages in the primary and secondary coils of a transformer. | Voltage Ratio in Transformers |
| What does the Voltage Ratio in Transformers represent? | The Voltage Ratio represents the relationship between the potential differences in the primary and secondary coils. |
| The process of determining the output voltage (potential difference) in the secondary coil using the Turns Ratio Equation. | Calculating Output Voltage |
| For example, an a.c. power supply has a voltage of 230 V and a transformer has 4000 turns on the primary coil and 800 turns on the secondary coil. What is the output voltage? | 46 V. |
| The winding arrangements of wire in transformers, consisting of primary and secondary coils. | Transformer Coils |
| What do the coils in transformers consist of, and what is their significance? | The coils in transformers consist of primary and secondary coils, and their turns determine the transformer's operation. |
| The voltage or electrical potential difference across the coils of transformers. | Potential Difference in Transformers |
| How is the potential difference related to the Turns Ratio Equation in transformers? | The potential difference is directly related to the Turns Ratio Equation, which establishes the relationship between turns and voltages in transformer coils. |
| An equation that relates the turns ratio, number of turns in the primary coil (Np), and number of turns in the secondary coil (Ns) in transformers. | Transformer Equation for Turns |
| What does the Transformer Equation for Turns determine? | The Transformer Equation for Turns determines the relationship between the turns ratio and the number of turns in the primary and secondary coils. |
| Conditions for a step-up transformer where the number of turns in the secondary coil (Ns) is greater than the number of turns in the primary coil (Np). | Step-Up Transformer Conditions |
| What are the conditions for a step-up transformer in terms of turns? | In a step-up transformer, Ns > Np. |
| Conditions for a step-down transformer where the number of turns in the primary coil (Np) is greater than the number of turns in the secondary coil (Ns). | Step-Down Transformer Conditions |
| What are the conditions for a step-down transformer in terms of turns? | In a step-down transformer, Np > Ns. |
| The process of utilizing the turns ratio equation to calculate the number of turns in the primary or secondary coil of a transformer. | Using Turns Ratio Equation for Number of Turns |
| How is the Turns Ratio Equation employed to determine the number of turns in a transformer? | The Turns Ratio Equation is used to work out the number of turns in either the primary or secondary coil of a transformer. |
| An illustrative scenario where the transformer converts 10 V into 200 V with 50 turns on its primary coil. | Example Scenario with Turns Ratio Equation |
| Explain the scenario of a transformer converting 10 V to 200 V with 50 turns on the primary coil. | In this example, the Turns Ratio Equation is applied, and since Ns > Np, the transformer is identified as a step-up transformer. |
| Characteristics of a transformer designed to increase the voltage, typically with more turns in the secondary coil. | Step-Up Transformer Characteristics |
| What are the key characteristics of a step-up transformer? | A step-up transformer is characterized by having a greater number of turns in the secondary coil, resulting in increased voltage. |
| Characteristics of a transformer designed to decrease the voltage, typically with more turns in the primary coil. | Step-Down Transformer Characteristics |
| What are the key characteristics of a step-down transformer? | A step-down transformer is characterized by having a greater number of turns in the primary coil, resulting in decreased voltage. |
| The effectiveness of high-voltage transmission cables in minimizing energy loss as heat during the transmission of electric power. | Efficiency of High-Voltage Transmission Cables |
| What does the efficiency of high-voltage transmission cables refer to? | The efficiency of high-voltage transmission cables refers to their ability to reduce energy loss as heat during the transmission of electric power. |
| The energy lost as heat in power cables due to their resistance when current flows through them. | Resistance-Related Energy Loss |
| What causes energy loss as heat in power cables? | Energy loss as heat in power cables is caused by the resistance they exhibit when current flows through them. |
| The process of calculating the power lost as heat in cables transmitting current at a low voltage (230 V), considering cable resistance and power equations. | Power Loss Calculation at Low Voltage (230 V) |
| How is power loss calculated at low voltage (230 V) in power cables? | Power loss at low voltage is calculated by applying the power equation, taking into account cable resistance and the current needed. |
| The process of calculating the power lost as heat in cables transmitting current at high voltage (400 kV) using the transformer power equation. | Power Loss Calculation at High Voltage (400 kV) |
| How is power loss calculated at high voltage (400 kV) in power cables? | Power loss at high voltage is calculated using the transformer power equation, which involves determining the current needed before the step-down transformer. |
| The comparison of energy efficiency between power transmission at low voltage and high voltage, considering power losses as heat. | Power Efficiency Comparison |
| What is the purpose of comparing power efficiency between low and high voltage transmission? | The comparison of power efficiency evaluates the impact of energy losses as heat and demonstrates the advantages of high-voltage transmission in minimizing such losses. |
| The action of reducing energy wastage, particularly as heat, during the transmission of electric power through the use of high-voltage transmission cables. | Minimizing Energy Wastage |
| How does high-voltage transmission contribute to minimizing energy wastage? | High-voltage transmission minimizes energy wastage by reducing power losses as heat, making it a more efficient method of electric power transmission. |
| The equation used to calculate the power in a transformer system, involving voltage and current values. | Transformer Power Equation |
| What is the transformer power equation, and how is it used in power transmission? | The transformer power equation involves voltage and current values and is utilized to calculate power in a transformer system, aiding in the analysis of power transmission efficiency. |
| The process of transmitting electric power at a high voltage of 400 kV, often associated with reduced energy loss as heat. | Power Transmission at 400 kV |
| What advantages are associated with power transmission at 400 kV? | Power transmission at 400 kV offers advantages such as reduced energy loss as heat, contributing to greater efficiency in the transmission of electric power. |
