Electrical Engineering - Inductors - Discussion
Discussion Forum : Inductors - General Questions (Q.No. 7)
7.
Two 10 H inductors are in parallel and the parallel combination is in series with a third 10 H inductor. What is the approximate total reactance when a voltage with a frequency of 7 kHz is applied across the circuit terminals?
219 k
66 k
660 k
1.3 M
Discussion:
13 comments Page 2 of 2.
Shruthi mathew said:
1 decade ago
1/L(equa) = 1/L1 + 1/L2.
L(equa) = 5H.
L(equa)+10H = 15H.
XL = wL
= 2*3.14*f*L
= 2*3.14*7*1000*15
= 659.4*1000
= 660kohms.
L(equa) = 5H.
L(equa)+10H = 15H.
XL = wL
= 2*3.14*f*L
= 2*3.14*7*1000*15
= 659.4*1000
= 660kohms.
Asha said:
1 decade ago
L equivalent=15H
reactance=wL=2*PIE*F*L
reactance=wL=2*PIE*F*L
Raja said:
1 decade ago
Can any one explain this why ?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers