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Electric Circuits

Electric Circuits
Active materials of a lead acid cell are

 all of above.
 lead peroxide.
 dilute H2SO4.
 spongy lead.

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Electric Circuits
Which of the following is not equivalent to watts?

 Amperes/volt.
 Joules per second.
 Ampere-volts.
 Ampere2 – Ohm.

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Electric Circuits
Air gap flux density is of the order of

  0.35 - 0.5 T.
  0.65 - 0.9 T.
 0.85 - 0.9 T.
 0.75 - 0.8 T.

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Electric Circuits
Cascade connection of two port networks is analyzed through

 ABCD parameters.
 Z parameters.
 h parameters.
 Y parameters.

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Electric Circuits
Consider the following circuit. What is the value of i ?

 12 A.
  5 A.
 6 A.
 - 5 A.

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Electric Circuits
A motor having a power factor of 0.8 absorbs in active power of 1200 W the reactive power drawn from the supply is _________ VA.

 900
 250
 130
 400

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