Explain the difference between Dynamometer type wattmeter and induction type wattmeter.
Dynamometer type wattmeter |
Induction type wattmeter |
| i. Working torque comparatively weaker. | i. Working torque comparatively stronger. |
| ii. Power consumption is low. | ii. Power consumption higher. |
| iii. Scale in uniform. | iii. Scale in uniform and long. |
| iv. Can be used both AC and DC system. | iv. Can be used only AC system. |
Explain the difference between Dynamometer type wattmeter and induction type wattmeter.
What are the special features of a high voltage Schering bridge? What is meant by “Wagner’s Earth”?
"FM and PM are different but inseparable." – Justify the statement.
Write short notes on:
What is E-plane Tee? Derive its S-matrix.
