Answer:
Explanation:
The wires are in circular shape . They have common center .
magnetic field due to circular wire is given by the formula
B = 
where I is current , r is radius of the coil .
magnetic field due to inner wire
= 
magnetic field due to outer wire
= 
These should be equal and opposite so that by cancelling each other , they create zero field.
=
I = 16.66 A
Direction of current should be in opposite direction ie anticlockwise when looking from above.
Answer:
0.1143m
Explanation:
W=f×s
8=70s
make s the subject of the formula
s=8/70
=0.1143m
Answer:
Acceleration due to gravity
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6. Answer: B) Apparent magnitude.
7. Answer: A) Absolute magnitude.
8. Answer: C) Fusion begins.
11. Answer: D) Cool, bright stars.
12. Answer: D) Prominences.
13. Answer: A) Clusters.
14. Answer: B) Elliptical.
15. Answer: A) Spectrum.
I really hope this helped you! c:
Answer:
The correct answer in which peer forces each act in a different body
Explanation:
Newton's law of action and reaction states that the two forces have equal magnitude, but in the opposite direction, each acting on a body. Which creates acceleration in these, if they act in the same body it would be canceled so there would be no movement.
The correct answer in which peer forces each act in a different body
