First slide

Phasors and Phasor Diagrams

Question

In the circuit shown, assuming all ammeters to be ideal, if readings of the hot wire ammeters A₁ and A₂ are i₁ and i₂ respectively then reading of the hot wire ammeter A₃ is :

Moderate

A

equal to (i₁ + i₂)
B

greater than (i₁ + i₂)
C

less than (i₁ + i₂)
D

equal to zero

Solution

Here, i₃ = $\sqrt{{i_{1}}^{2} + {i_{2}}^{2}}$ which is less than (i₁ + i₂)

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