For the circuit shown, current
¯I1=6∠30∘Aand ¯I2=2∠20∘A
The instantaneous current ¯I3 at 60 Hz frequency is_____
=6∠30∘−2∠20∘
=4.045∠34.92∘A
¯I3max=√2×Irms
=√2×4.045=5.72A
Here, ϕ=34.92∘
and ω=2πf=2π×60=377rad/sec
∴ Instantaneous current
¯I3=5.72sin(377t+34.92∘)A