Physics, asked by kushikutty9, 1 year ago

pls answer this anyone

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saran545: nothing u can answer with politeness also

kushikutty9: fine

kushikutty9: im studying fr my exam

kushikutty9: thats y

saran545: okk ok be polite yr im not saying anything wrong

saran545: okok

kushikutty9: mm

saran545: class

Anonymous: plz no chatting here

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Answers

Answered by Anonymous

Ohm's Law formula

By Ohm's Law ,

V = I R

Question (i)

Given :

Voltage ( V ) = 1.5 v

Resistance through arm AB ( R ) = 12 ohms

V = I R

==> I = V / R

==> I = 1.5 v / 12 ohms

==> I = 0.125 A

Current is 0.125 A through AB

Through CDE :

R= 4 ohms + 6 ohms

= 10 ohms

I = V/R

==> I = 1.5 v / 10

==> I = 0.15 A

Current through CDE is 0.15 A

Question (ii)

Through CD :

R = 6 ohms

V = I R

==> V = 0.15 A × 6 ohms

==> V = 0.9 v

Potential difference is 0.9 v

Through DE

V=I R

V = 0.15 A × 6 ohms

==> V = 0.4 v

Potential difference is 0.4 v

Thanks !!

kushikutty9: qn 2 wrong answer

Anonymous: CD or DE ?

kushikutty9: both

kushikutty9: how come different resistance have same pot diff

Anonymous: current is same because it is flowing in the single path and resistance are diff so v is also different ..

kushikutty9: theb how cd has 0.9v and de has 04v

kushikutty9: 0.4

Anonymous: current through CDE is found 0.15 A and so the same current will flow as it is series.....in series the potential diff are different offcourse..

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