A long solenoid has 1400 turns per meter of length, and it carries a current of 3.0 A. A small circular coil of wire is placed i
nside the solenoid with the normal to the coil oriented at an angle of 90.0˚ with respect to the axis of the solenoid. The coil consists of 56 turns, has an area of 1.2 × 10-3 m2, and carries a current of 0.70 A. Find the torque exerted on the coil.
2 answers:
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Answer:
Explanation:
The resistance of a conductor is directly proportional to its length and is inversely proportional to its cross-sectional area, this dependence is given by:
is the material's resistance, L is the legth and A is the cross-sectional area.
For the first and second coils, we have:
For the third and fourth coils, we have:
Answer:
Distance will be
Explanation:
We have given that Buffalo has a latitude of 42.9°N
And Raleigh has a latitude of 35.8°N
Radius of the earth = 3960 miles
We have to calculate the distance between given two cities
Difference in their latitudes =
Now changing the angle in radian =
So distance will be