The input power to a machine is 1500 W. And its efficiency is 80%. Then the output power by the machine is :

800 W

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1100 W

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1200 W

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

1500 W

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C
1200 W

Input Power = 1500 W

n=80%

n= $\frac{O u t p u t P o w e r}{I n p u t P o w e r}$

$\Rightarrow$ Output power = $n \times$ input power
= 0.8 \times 1500 W
= 1200 W

Suggest Corrections

Similar questions

A rotating machine is maintained at a uniform angular speed of 150 rad s^-1, with a torque of 100 Nm. The power is

25

1 k w

A M

1500 W

100 %

A machine raises a load of 750 N through a height of 16 m in 5 s.Calculate:

(i) the energy spent by the machine,

(ii) the power of the machine if it is 100% efficient.

25

1 k W

Join BYJU'S Learning Program