<u>A</u><u>n</u><u>s</u><u>w</u><u>e</u><u>r</u><u> </u><u>:</u><u> </u>
<em><u>.</u></em><em><u>changing chemical energy to thermal energy</u></em>
<em><u>.</u></em><em><u>changing nuclear energy to radiant energy</u></em>
<u>E</u><u>x</u><u>p</u><u>l</u><u>a</u><u>n</u><u>a</u><u>t</u><u>i</u><u>o</u><u>n</u><u> </u><u>:</u><u> </u>
<h3><em><u>H</u></em><em><u>o</u></em><em><u>p</u></em><em><u>e</u></em><em><u> </u></em><em><u>i</u></em><em><u>t</u></em><em><u> </u></em><em><u>h</u></em><em><u>e</u></em><em><u>l</u></em><em><u>p</u></em><em><u>s</u></em><em><u> </u></em><em><u>y</u></em><em><u>o</u></em><em><u>u</u></em><em><u> </u></em><em><u>m</u></em><em><u>a</u></em><em><u>t</u></em><em><u>e</u></em><em><u> </u></em><em><u>)</u></em><em><u>)</u></em></h3>
Answer:
The heat gain of the room due to higher efficiency is 2.84 kW.
Explanation:
Given that,
Output power of shaft = 75 hp
Efficiency = 91%
High efficiency = 95.4%
We need to calculate the electric input given to motor
Using formula of efficiency




We need to calculate the electric input
For, heigh efficiency



The reduction of the heat gain of the room due to higher efficiency is

Put the value into the formula


Hence, The heat gain of the room due to higher efficiency is 2.84 kW.
Answer:
A force is any interaction that causes a mass to change its velocity (accelerate).
Weight is a special case of force. Weight is when a mass is accelerated by gravity.
32. P = V * I
P = 230 * 4 = 920 w
In short, Your Answer would be: 920 w
33. I = P/V
I = 48/12 = 4 A
In short, Your Answer would be: 4 Ampere
34. Now, for this part you've given Voltage & Power, and you need to calculate Current & Resistance, so you could apply two equations here:
(i) For finding Current = P/V
(ii) For resistance = V²/P
So, Current for Bulb of Study Lamp = 60/230 = 0.260 A
Resistance of Bulb of Study Lamp = 230²/60 = 881.67 Ohm
In similar manner, substitute the known values (Power & Voltage) in each case, you'll have your answers!
35. We know, P = V²/R
P = 230²/48
P = 1102.08 w
Hope this helps!