Question

*PHYSICS*
1) Find the total electricity consumption for a month of 30 days-
a)4 fans,100W each,are used 10 hrs daily.
b)5 tubelights,40W each,are used 6 hrs daily.
c)one TV of 100W is used 3 hrs daily.
d)one refrigerator of 200W is used 14 hrs daily.
e) one water pump of 100W is used 3 hrs daily.
f)one inverter of 100W is used 10 hrs daily.

*CHEMISTRY*
2- what happens on heating-
a)Ferrous sulphate crystals
b)Lead nitrate
c)Copper sulphate crystals
d)Lime stone

3- Write one equation each for decomposition reactions where energy is supplied in the form of heat, light and electricity.

*BIOLOGY*
4- Draw a well labelled diagram of human excretory system & label the part which perform the following function-
a) the structure which form urine.
b)a long tube which collects urine from kidney.
c)the structure which store urine untill it is passed out.​

Answer 1

Answer:

1) As, w=p*t

now, total time =10*30=300 hrs.

total power=4*100=400

now,  total electricity consumed=p * t

= 400* 300= 120000 J

now, using this formula /, u can solve all the ques. bro .......now, for ur convenience I'm writing all the answers...

2) 36000 J

3) 9000 J

4) 84000 J

5) 9000 J

6) 30000 J

HOPE IT HELPS BRO...

Explanation: