Electronics - Inductors - Discussion
Discussion Forum : Inductors - Filling the Blanks (Q.No. 3)
3.
The inductive reactance of L2 is _____ in the given circuit.
3.5 k
4.4 k
16.3 k
23.3 k
Discussion:
3 comments Page 1 of 1.
KIRAN V said:
9 years ago
XL = 2 * Pi * f * L.
Given: L2 = 100 mH.
XL = 2 * 3.14 * 7 * 10^3 * 100 * 10^-3.
XL = 4396 Ohm.
Nearly
XL = 4.4 K Ohm.
Given: L2 = 100 mH.
XL = 2 * 3.14 * 7 * 10^3 * 100 * 10^-3.
XL = 4396 Ohm.
Nearly
XL = 4.4 K Ohm.
(1)
Just me said:
1 decade ago
If the Inductors were all in parallel your calculation makes sense.
Just calculate the Inductive reactance for the 450mH inductor the value is 2*PI*7000*(450X 10^-3) = 19792 OHMs so the total reactance is higher than this value.
Just calculate the Inductive reactance for the 450mH inductor the value is 2*PI*7000*(450X 10^-3) = 19792 OHMs so the total reactance is higher than this value.
Tim said:
1 decade ago
Here total inductance is l = 1/l1+(1/(l2+l3)).
l = 1/450mh+1/(100mh+370mh).
l = (10^6/450+10^6/470) = (2.22222+2.12766)10^6.
l = 4.34988k.
Nearest value is 4.4 kohms.
l = 1/450mh+1/(100mh+370mh).
l = (10^6/450+10^6/470) = (2.22222+2.12766)10^6.
l = 4.34988k.
Nearest value is 4.4 kohms.
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