Question

class 10 phy que
find b part fast.....​

Answer 1

Answer:

7.

a. I = V/R

1/Rp1 = 1/1.5 + 1/3

= 2/3 + 1/3

= 3/3

So, Rp1 = 3/3 =1 ohm

1/Rp2 = 1/6 + 1/12

= 2/12 + 1/12

= 3 / 12

Rp2 = 12/3 = 4 ohm

Rs = Rp1 + Rp2

= 1 + 4

= 5 ohm

I = V/R

I = 9/5 A

= 1.8 A

________________________

b.

i.

Current through 1.5 ohm resistor = V/R

I = 9/1.5

= 6 A

Therefore the current flowing through the 1.5 ohm resistor is 6 A.

_________________________

ii.

current through 12 Ohm resistor.

I = V/R

I = 9 / 12

= 3/4

= 0.75 A

Answer 2

2/3 × i A

total current drawn : i ( from a )

Resistance : 1.5Ω

branch circuit : parallel

current ratio : 3 : 1.5 = 2 : 1

current in 1.5Ω : 2/3 × i A