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Three inductive loads, each of resistance 4Ω and reactance 9Ω are linked in delta. When linked to a 3-phase supply the loads consume 1.2kW.
Calculate
(a) The power factor of the load,
(b) The phase current,
(c) The line current and
(d) The supply voltage.
12 joule of work has to be completed against an existing electric field to take a charge of 0.01 C from A and B. How much is the potential difference VB-VA.
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