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Electric circuits miscellaneous

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Electric circuits miscellaneous
  1. A wattmeter is connected as shown in the figure given below. The wattmeter reads

    1. zero always
    2. total power consumed by Z1 and Z2
    3. power consumed by Z1
    4. power consumed by Z2
Correct Option: D


Since potential coil draws negligible current, IP ≈ 0 and current through Z1 and Z2 will be same.
Then, wattmeter will read power consumed by Z2, P = IC .V where V is potential across Z2.


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