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Answer:
0.25 T
Explanation:
F = Force required to keep the bar moving = 0.080 N
B = magnitude of magnetic field = ?
L = length of the bar = 50 cm = 0.50 m
v = speed of the bar = 0.50 m/s
R = resistance of the bar =0.10 Ω
Force is given as
B = 0.25 T
Answer:
The entire cart/hanging mass system follows the same law, ΣF = ma. This means that plotting force vs. acceleration yields a linear relationship (of the form y = mx).
Answer:
e. The speed of the object is a constant 6 m/s
Explanation:
Since the net force is towards the centre , hence there is no tangential acceleration . Only centripetal acceleration is there . Hence point mass is moving with uniform speed . Let it be u .
Centripetal force = m v² / r , r is radius of circular path .
Putting the given values
.10 x v² / .36 = 10
v = 6 m /s