Capacitor in parallel with a Resistor circuit analysis

Thread Starter

ghulen

Joined Jan 4, 2018
14
If a capacitor is in parallel with a resistor, is the voltage across the resistor = to the voltage across the capacitor? For example, in this picture Vc = i1(2ohm)
Screenshot_20181209-234317_YouTube.jpg
 

Tonyr1084

Joined Sep 24, 2015
6,069
To answer your question regardless of the picture, yes, the voltage across the resistor parallel to the cap is equal.

In your picture I don't see any capacitors.

As for what is different in the same parallel circuit - the current is different. The voltage remains equal.
 

crutschow

Joined Mar 14, 2008
27,408
By definition, all parallel elements in a circuit must have the same voltage across them.
If not, then they are not in parallel.
 

WBahn

Joined Mar 31, 2012
26,398
To answer your question regardless of the picture, yes, the voltage across the resistor parallel to the cap is equal.

In your picture I don't see any capacitors.

As for what is different in the same parallel circuit - the current is different. The voltage remains equal.
In the picture he is doing a steady-state analysis and so replacing the capacitor with an open circuit.
 
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