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1 answer:
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Answer:
The flow rate is
Explanation:
From the question we are told that
The velocity is
The diameter of the pipe is
The radius of the pipe is mathematically represented as
substituting values
The flow rate is mathematically represented as
Where is the cross-sectional area of the pipe which is mathematically evaluated as
substituting values
So
Answer:
Explanation:
Electric force between two particles
= ( 9x10⁹x7.4 x 10⁻⁶ x 3.2 x 10⁻⁶ )/ (3.2 x 10⁻²)² ( Distance between particles is 1.6 +1.6 = 3.2 cm . )
= 20.81 x 10 = 208.1 N
1 ) Magnetic field due to movement of second charge
=
= 10⁻⁷ x 3.2 x 10⁻⁶ x 4 / (3.2 x 10⁻²)²
B = 1.25 x 10⁻⁹ T.
Due to this magnetic field , there is a force called magnetic force on first particle which will be expressed as follows
Force = Bqv
= 1.25 x 10⁻⁹ x 7.4 x 10⁻⁶ x 4
37 x 10⁻¹⁵ N
2 ) For magnetic force to be equal to electric force let velocity o particles be V
Then magnetic field due to second charge
= 10⁻⁷ x 3.2 x 10⁻⁶ x v / (3.2 x 10⁻²)²
= .3125 v x 10⁻⁹
Magnetic force on first charge
Bqv
= .3125 v x 10⁻⁹ x 7.4 x 10⁻⁶ x v
2.3125 x 10⁻¹⁵ v²
magnetic force = electric force
2.3125 x 10⁻¹⁵ v² = 208.1
v² = 90 x 10¹⁵
v² = 900 x 10¹⁴
v = 30 x 10⁷ m /s