When is a circuit said to be in resonance?

What will be an ideal response?


The inductive elements of certain circuits require a value of magnetizing VARs equal to that produced by capacitive elements. Such circuits require no external VARs. Thus, when the circuit is viewed from the input terminals, it appears as a pure resistance. This type of circuit is said to be in resonance because there is a balance between the magnetizing VAR supply and the demand.

Trades & Technology

You might also like to view...

Blades for masonry saws do not have a specific direction of rotation.

Answer the following statement true (T) or false (F)

Trades & Technology

Mandrels should be approximately what percentage of the conduit size?

a. 50% b. 60% c. 75% d. 80%

Trades & Technology

Why is a “Y” valve used on a high pressure oil system on a compressor rack?

a. To reduce the oil pressure from high discharge pressure to crankcase pressure. b. To increase oil pressure from crankcase pressure to discharge pressure. c. To distribute oil equally to all compressors on a compressor rack.

Trades & Technology

The proper operation of a vacuum brake booster requires that the engine be capable of supplying at least ________

A) 17 in. Hg vacuum B) 15 in. Hg vacuum C) 19 in. Hg vacuum D) 21 in. Hg vacuum

Trades & Technology