Electric Circuits
When a lossy capacitor with a dielectric of permittivity ε and conductivity σ operates at a frequency ω the loss tangent for the capacitor is given by

 ω ε/σ.
 ω σ/ε.
 σ ω ε.
  σ/ω ε.

ANSWER DOWNLOAD EXAMIANS APP

Electric Circuits
What is referred as the average value in AC opearation?

 Average of all values of an alternating quantity.
  Average of all values of an alternating quantity over a complete cycle.
 Average of all values of the (+)ve and (-)ve half.
 Average of all values of the phase sequences.

ANSWER DOWNLOAD EXAMIANS APP