Question: Two balanced Y-connected loads, one drawing (10 mathrm{~kW}) at 0.8 power factor lagging and the other (15 mathrm{~kW}) at 0.9 power factor leading, are connected

Two balanced Y-connected loads, one drawing $10 \mathrm{~kW}$ at 0.8 power factor lagging and the other $15 \mathrm{~kW}$ at 0.9 power factor leading, are connected in parallel and supplied by a balanced three-phase Y-connected, $480-\mathrm{V}$ source.

(a) Determine the source current.

(b) If the load neutrals are connected to the source neutral by a zero-ohm neutral wire through an ammeter, what will the ammeter read?

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