What is the inductance for an inductor with a reactance of 20
at a frequency of 60 Hz?
A. 12 H
B. 19 H
C. 3.0 H
D. 53 mH
E. 27 mH
D. 53 mH
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High-voltage wires in power lines are not high-current wires because the current in them is
A) not the same as the current that powers the distant load. B) proportional to the voltage drop from beginning to end of each line, rather low. C) both of these D) neither of these
______________ properties are those that do not describe the chemical reactivity of the substance
Fill in the blank(s) with correct word
The magnetic field at a distance of 2 cm from a current carrying wire is 4 ?T. What is the magnetic field at a distance of 4 cm from the wire?
A) 1/2 µT B) 1 µT C) 2 µT D) 4 µT E) 8 µT
Define and differentiate between user-based and user-controlled website navigation.
What will be an ideal response?