pls hlp me out ..........
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sknthh:
que of which class?
10
ohk
hmm
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a)
emf=I×(r+R)
emf÷(r+R)=I
2/(1.2+0.8+3)=I
=2÷5
=0.4 Ampere
b)
Terminal voltage =
R×I=0.4×3.8=1.52 V
c)
effective resistance of the parallel combination= 3 ohm
current = 0.4 A
Voltage across the parallel combination = 3×0.4=1.2 V
as the potential difference btwn the parallel connection is the same as the potential difference btwn the 4.5 ohm resistor
voltage across 4.5 resistor = 1.2 V
emf=I×(r+R)
emf÷(r+R)=I
2/(1.2+0.8+3)=I
=2÷5
=0.4 Ampere
b)
Terminal voltage =
R×I=0.4×3.8=1.52 V
c)
effective resistance of the parallel combination= 3 ohm
current = 0.4 A
Voltage across the parallel combination = 3×0.4=1.2 V
as the potential difference btwn the parallel connection is the same as the potential difference btwn the 4.5 ohm resistor
voltage across 4.5 resistor = 1.2 V
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