Electric Circuits
A capacitor of 50 microfarad is connected in series with a resistance of 120 Ω. If above circuit is connected across 240 V, 50 Hz 1 - φ supply. Find the capacitive reactance?

 63.7 Ω.
 0.015 Ω.
 135.86 Ω.
 1.765 Ω.

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Electric Circuits
What is called a cycle in case of AC operation ?

 When an alternating quantity completes the (–)ve cycle, is called a cycle.
  When ac goes through a complete (+)ve to (-)ve, is called a cycle.
 When ac completes the (+)ve half, is called a cycle.
 Option A and C both.

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