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Find the total current in the circuit if two currents of 4+5j flow in the circuit.

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in Basic Electrical Engineering by (88.7k points)
Find the total current in the circuit if two currents of 4+5j flow in the circuit.

(a) 4+5j A

(b) 4A

(c) 5A

(d) 8+10j A

I had been asked this question in unit test.

My question is based upon Representation of an Alternating Quantity by a Phasor topic in portion Alternating Voltage and Current of Basic Electrical Engineering

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Right answer is (d) 8+10j A

The explanation: The total current in the circuit is the sum of the two currents where we add the real parts and imaginary parts separately.

Therefore, Itotal= 8+10j A.

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