The all-day efficiency of a transformer is also known as
The all day efficiency of transformer is also known as:
- Current efficiency
- Power efficiency
- Energy efficiency
- None of these
Correct answer: 3. Energy efficiency
- A 30 ohms resistive load is to impedance matched to transformer to a source having internal resistance of 3000 ohms. The ratio of primary to secondary turns of transformer should be
- 1 dB corresponds to change in voltage or current level of