Assertion (A) : Real Transformers are 100% efficient.
Reason (R ): In practical Transformers, there is zero energy loss.

Options

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false and R is also false

Explanation

To analyze the given assertion and reason, we need to break down the statements and evaluate their validity.

### Step 1: Understand the Assertion
The assertion states that "Real Transformers are 100% efficient."

- **Evaluation**: This statement is incorrect. Real transformers cannot achieve 100% efficiency due to inherent losses such as copper losses (due to resistance in the windings), iron losses (due to hysteresis and eddy currents in the core), and other minor losses. Therefore, the assertion is false.

### Step 2: Understand the Reason
The reason states that "In practical Transformers, there is zero energy loss."

- **Evaluation**: This statement is also incorrect. Practical transformers do experience energy losses, as mentioned earlier. Therefore, the reason is false.

### Step 3: Conclusion
Since both the assertion and the reason are false, we conclude that:

- **Assertion (A)**: False
- **Reason (R)**: False

### Final Answer
Both the assertion and the reason are false.

---