Answer:
250 A
Explanation:
B = 5 x 10^-5 T, r = 1 m
Let current be i.
the magnetic field due to a straight current carrying conductor is given by
B = μ0 / 4π x 2i / r
5 x 10^-5 = 10^-7 x 2 x i / 1
i = 250 A
Answer:The mechanical advantage of a machine is always less than its velocity ratio.It is because mechanical advantage decreases due to the friction and weight of moving parts of the machine, but the velocity ratio remains constant.
Explanation: hope this helps
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Answer:
Option B
Explanation:
As we know phase difference is equal to
----Eq (1)
where
is the physical difference between two points = 0.025 m
is equal to 
Substituting the given values in above equation, we get -
=
Hence, option B is correct
