Electric Circuits
In the given figure, the Thevenins equivalent voltage and impedance as seen from the terminals P - Q is given by

 2 V and 7.5 Ω.
 2 V and 5 Ω.
 4 V and 7.5 Ω.
 4 V and 5 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.
 Option A and C both.
  When ac goes through a complete (+)ve to (-)ve, is called a cycle.
 When ac completes the (+)ve half, is called a cycle.

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