how to know or calculate this.
Which component is shorted?

 

The current through R1 will be: 48mA calculated.

 

Which component is open?

 

how to know or calculate this.
Which component is shorted?

Not that resistors short out, but If R1 were shorted you would not see that 2.4 Amps through the following stages. Likewise R2 and R3, so it must be R4.

 

In a 20 Vac series RC circuit, if 20 V is measured across the resistor and 40 V is measured across the capacitor, the applied voltage is:

 

In a 20 Vac series RC circuit, if 20 V is measured across the resistor and 40 V is measured across the capacitor, the applied voltage is:

i got the answer but don't understand 20Vac meaning here.

 

What is the angle theta value for a 5.6

F capacitor and a 50-ohm resistor in series with a 1.1 kHz, 5 Vac source?

After solving:
P Active power across R=0.5W
Q Reactive C= 0.967VAR
So, S=√(P²+Q²)
S=1.10VA

cosΦ=Base /hyp.
cosΦ=0.5/1.10=62.9

But answer is –27.3 degrees

 

how to know or calculate this.
Which component is shorted?

First you're going to have to tell me what the rectangles represent?

If ammeters what is their terminal to terminal resistance?

 

What is the angle theta value for a 5.6

F capacitor and a 50-ohm resistor in series with a 1.1 kHz, 5 Vac source?

@RRITESH KAKKAR --- You know full well how to calculate reactance and convert between rectangular and polar formats!

 

You know full well how to calculate reactance and convert between rectangular and polar formats!

Sinθ=imaginary(Reactive)/Real(Active)
Sinθ=0.967/0.5=1.9 error

 

What is the phase shift between the voltage across the resistor and the voltage from the source?

 

What is the phase shift between the voltage across the resistor and the voltage from the source?

Convert C1 into impedance.
Now you have two "resistors" in series, also known as Voltage Divider.
Apply voltage divider formula to R1 to find voltage across R1 in complex form.
Extract the angle from the complex voltage of R1.

 

Not that resistors short out, but If R1 were shorted you would not see that 2.4 Amps through the following stages.

Not to be particular but there is a little bit of difference between the 2.4 amperes you quoted and the 2.4 GigaAmperes the simulation shows. However, the troubleshooting was correct.

 

I haven't see @RRITESH KAKKAR attempts on all the problems yet.

 

RRITESH,

PLEASE, one problem at a time (in a given thread). You posted several problems and have created utter chaos because no one can keep track of which problem a given response is for.

Start ONE thread on ONE problem, provide YOUR best attempt to solve that ONE problem, and focus on that ONE problem until you understand the solution.

 

how to know or calculate this.
Which component is shorted?

This makes no sense at all. Leaving aside the fact that your ammeters are should 2.4 GA (i.e., 2,400,000,000 amperes), the fact that they are all the same means NO current is flowing downward through ANY of the resistors that are connected between meters. Hence R1, R2, and R2 are ALL acting like open circuits. Then assuming that your 2.400G should be 2.400m, R4 is behaving like a 5 kΩ resistor.

 

@RRITESH KAKKAR

A more realistic problem for the first one would be stated like the attached as your simulations perfect supply is capable of GigaAmperes:

 

How to know there is no output seen?
so, one does not know whether circuit working or not?

 

How to know there is no output seen?

4 outputs are seen. They are labeled as 12A after each amp meter.

so, one does not know whether circuit working or not?

YOU don't know, but only because you can't read the labels.

 

but there is a little bit of difference between the 2.4 amperes you quoted and the 2.4 GigaAmperes the simulation shows.

Aye! That was my principal issue with the 'rectangular' blocks!