Consider two current-carrying circular loops. Both are made from one strand of wire and both carry the same current, but one has twice the radius of the other
Compared to the magnetic moment of the smaller loop, the magnetic moment of the larger loop is A) 8 times stronger.
B) 16 times stronger.
C) 4 times stronger.
D) 2 times stronger.
E) times stronger.
C
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The most easily visible supernova remnant is the _______________ Nebula
Fill in the blank(s) with correct word
A rectangular conducting loop is placed near a long wire carrying a current I as shown in Figure OQ31.3. If I decreases in time, what can be said of the current induced in the loop?
1.The direction of the current depends on the size of the loop.
2.The current is clockwise.
3.The current is counterclockwise.
4.The current is zero.
5.Nothing can be said about the current in the loop without more information.
What is the source of the energy for the creation of heavy elements [heavier than iron]?
A) The shock of a supernova explosion. B) Fission. C) Helium fusion. D) Gravitational collapse. E) Hydrogen fusion.
Two ice skaters push off against one another starting from a stationary position. The 45.0-kg skater acquires a speed of 0.375 m/s. What speed does the 60.0-kg skater acquire?
Assume that any other unbalanced forces during the collision are negligible. A) 0.500 m/s B) 0.281 m/s C) 0.375 m/s D) 0.750 m/s E) 0.000 m/s