wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The arc length voltage characteristic of a DC arc is given by the equation V = 24 + 4L where V is the arc voltage and 'L' is the arc length in mm. The static volt ampere characteristic of the power source is approximated by a straight line with no load voltage of 80 volts and the short circuit current of 600 amperes.

The power utilized is

A
120 W
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
12 MW
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
12 kW
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
120 kW
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 12 kW
V=24+4LOCV=80VSSC=600AVOCV+ISSC=1V80+I600=1P=VI=600V(1V80)P=600(VV280)For P =PmaxdPdV=0600(12V80)=0V=40VoltsAnd, I=600(1V80)=600(14080)I=300AP=VI=40×300=12kW

flag
Suggest Corrections
thumbs-up
1
similar_icon
Similar questions
View More
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Electric Current(I)
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon