Question

please answer me question no. 16

Answer 1

a) As resistance are in parallel,

1/R= 1/2 + 1/5 + 1/10 =8/10

So, R=5/4

b) I = V/R = 10*4/5 = 8 A

c)same as we did in part b for each resistor separately.........

I HOPE You understand.....

Answer 2

See the resistors are in parallel

1/R1+1/R2+1/R3 =1/R

1/2 +1/5 +1/10 = 1/R

(5+2+1)/10 =1/R

8/10 =1/R

10/8 = R

5/4 = R

2) Total current 

V= IR

10 = I * 5/4

10*4/5 = I

8 A = I

3) Now potential difference is same across each resistors 

I = V/R1 = 10/2 =5 A

I = V/R2 = 10/5 = 2A

I = V/R3 = 10/10 = 1 A

Hope this helps !!