Answer:
r= 3.2 cm
Explanation:
Given that
I= 8.7 A
B= 5.4 x 10⁻⁵ T
μo=1.25664 x 10⁻⁶
We know that magnetic filed in wire at a distance r given as
By putting the values
r=0.032 m
r= 3.2 cm
How many microphones are in a megaphone?
1 answer:
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But the radius is proportional to the number of teeth N of the gear. Therefore we can rewrite the gear ratio also as
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But the radius is proportional to the number of teeth N of the gear. Therefore we can rewrite the gear ratio also as