The only way to slow down a moving object is to apply a net force to it.
1 answer:
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The resistance of an ohmic material is given by
where l is the length and a is the cross sectional area. For a circular wire, this area is that of a circle:
Then solving for diameter, d:
where l is the length and a is the cross sectional area. For a circular wire, this area is that of a circle:
Then solving for diameter, d:
Answer:
The maximum no. of electrons-
Solution:
As per the question:
Maximum rate of transfer of charge, I = 1.0 C/s
Time, t = 1.0 h = 3600 s
Rate of transfer of charge is current, I
Also,
Q = ne
where
n = no. of electrons
Q = charge in coulomb
I = current
Thus
Q = It
Thus the charge flow in 1. 0 h:
Maximum number of electrons, n is given by:
where
e = charge on an electron =
Thus