The way astronomers determine the surface temperature<span> of a </span>star<span> which is determined by the spectral lines present in a </span>stars<span> spectrum</span>
Answer:
current in the circuit is 1.428 A
Explanation:
Given data
voltage = 60 V
resistor = 21 Ω
time = 0
to find out
current in the circuit
solution
we have given that
voltage across the resistor = voltage across the inductor
that is = 60 /2 = 30 V
we know voltage across resistor = IR
so I × R = V/2
and current I = 30 /21
so current = 1.428 A
current in the circuit is 1.428 A
Becomes numb. Or begins to hurt
