Find voltages across the current sources.
a)
b)
c)
d)
e)
Solution
In each case, the current source is parallel with a voltage source. Therefore, the voltage across the current source is equal to the voltage of the voltage source, regardless of other elements.
a)
b)
c)
d)
e)
Dr. Li -
I am trying to understand circuit d better. Why is it that the 6 ohm resister doesn't conduct? What direction does the current flow through the battery? Can it be redrawn in a way making it clearer?
Thank you.
The $latex 6 \Omega$ is short circuited. Then the all portion of current passes through the wire which is short circuiting the $latex 6 \Omega$. When two sides of a resistor are connected to each other, the voltage across the resistor is zero. Therefore, the Ohm's law also implies that the current is zero: $V=RI=0 \to I=0 $.
The current of $latex 3 \Omega$ is $latex \frac{3V}{3 \Omega}=1 A $ from the top to the bottom. The current of the current source is $latex 2 A$ from the top to the bottom. So, the current of the voltage source is $latex 2 A + 1 A $ from bottom to the top, i.e. from the negative terminal to the positive one.
thanks alot for sharing your knowledge with us....
do me a favor?
what is meant by
1) voltage controlled current source and
2) current controlled voltage source ,
3)voltage controlled voltage source and also
4) current controlled current source?
in these given circuit howcan we find which source is supplying and which source is obsorbing or both are suppling power
what is the cirrent through 2v battary of circuit (b)