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Physics - W.E.P. Question with Solution | TestHub

PhysicsW.E.P.PowerEasy2 minPYQ_2020

PhysicsEasysingle choice

A pump motor is used to deliver water at a certain rate from a given pipe. To obtain $n$ times water from the same pipe in the same time the amount by which the power of the motor should be increased

Options:

Answer:

Solution:

The volume delivered per second = $A v$

Mass delivered per second = $A v d$

Momentum delivered per second = $A v^{2} d$ = Force

Power = Force $\times$ Velocity = $A v^{3} d$

i.e. Power $\propto v^{3}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:W.E.P.Subtopic:Power

⏱ 2mℹ️ Source: PYQ_2020

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