Question

What is power. If work down is 50 and time is equal 10 sec then what will be the power.?​

Answer 1

Answer:

Power : The amount of work done per unit time is called as Power.

The unit of power is Watt.

P= W/t

Here , in question they have given us work done is 50J

And in time ,t = 10 seconds

So now, we know ,P= W/t

=> P = 50/10

=> Power =5 Watts

Answer 2

$\: \: \: \: \:{\large{\pmb{\sf{\underline{ Here's \: your \: required \: solution!! }}}}}$

• Power is defined as the rate of work done per unit time.Mathematically:-

$\boxed{ \sf \: Power = \dfrac{Work }{Time} }$

• It is a scalar quantity having only magnitude.
• SI unit : W (watt)
• Dimension formula : [M¹L²T‾³]

You should keep in mind that :-

• $\sf\:1\:J=10^7\:erg$
• $\sf\:1\:eV=1.6\times10^{-19}\:J$
• $\sf\:1\:MeV=10^6\:eV$
• $\sf\:1\:amu=931\:MeV$
• $\sf\:1\:kilowatt=10^3\:W$
• $\sf\:1\:horse\:power=746\:W$

According to the question, we are given :-

• Work done = 50
• Time = 10 sec

Now, substitute the given values:-

$\sf. \purple {:\implies\:Power=\dfrac{Work}{Time}}$

$\sf:\implies\:Power=\dfrac{50}{10}$

$\sf:\implies\: Power=\cancel {\dfrac{50}{10}}$

$:\implies\:\underline{\boxed{\sf{\purple{Power=5\:kW}}}}$