At what frequency would a 10H inductor have a reactance o...
At what frequency would a 10H inductor have a reactance of 2000Ω?
π/200Hz
π/100Hz
100/πHz
100πHz
Correct answer is E
Inductive reactance XL = 2πfL
∴ 2πfL = 2000Ω
then f = 2000Ω/2 x π x 10
f = 100/πHz
Control in nuclear reactors is effected with boron rods because rhe rods have the ability to ...
Which of the following will convert a milliammeter to a voltmeter? ...
Soft iron is used in making the armature of an electric bell because it ...
The instrument used for securing a large number of similar charges by induction is called ...
The rate of cooling of a heated quantity of liquid in an enclosure depends on the ...
Determine the value of x from the nuclear reaction below, 22286Rn → \(^{x}_{88}Ra\...
When an elastic material is stretched by a force, the energy stored in it is ...