Question 679: Current Electricity

Question

In the circuit shown in the figure, if the potential at point A is taken to be zero, the potential at point B is

Accepted Answer

Current from D to C = 1A
$$ 	herefore $$  V
D
Ã¢ÂÂ V
C
= 2 ÃÂ 1 = 2V
V
A
= 0   $$ 	herefore $$ V
C
= 1V,
$$ 	herefore $$ V
D
Ã¢ÂÂ V
C
= 2
$$ \Rightarrow $$ V
D
Ã¢ÂÂ 1 = 2    $$ 	herefore $$  V
D
= 3V
$$ 	herefore $$ V
D
Ã¢ÂÂ V
B
= 2   $$ 	herefore $$ 3 Ã¢ÂÂ V
B
= 2 $$ 	herefore $$ V
B
= 1V

Answer

+1 V

Answer

$$-$$1 V

Answer

+2 V

Answer

$$-$$2 V

Current Electricity

In the circuit shown in the figure, if the potential at point A is taken to be zero, the potential at point B is

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