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What is the current in the circuit when the switch is closed?
A switch has two states Open or closed When a switch is open no current can flow through it. When a switch is closed current flows through it.
How do you find the current in a closed circuit?
What is the formula for a total current? IT = VT/RT or I total = V total / R total or the total current = the total voltage / the total resistance.
What is the current through the resistor immediately after the switch is closed?
At the moment we closed the switch the current is still zero through the resistor, therefore, the potential difference across the resistor must be also zero.
What happens to resistor when switch is closed?
It cannot change when one set of switches opens and the other closes. Keep in mind that when the second set of switches is closed, the voltage across the resistor is the same as the voltage across the capacitor.
What is the battery current after the switch has been closed for a long time?
Question: After the switch has been closed for a very long time, the battery current should read ____A. Currect answer is 2.
What is the voltage across the capacitor after a very long time?
What is the voltage across the capacitor after a very long time? No current flows through the capacitor after a long time.
How do you tell if a switch is open or closed?
An open switch is one without continuity: current cannot flow through it. A closed switch is one that provides a direct (low resistance) path for current to flow through.
How to calculate current through a capacitor after switch closed?
Can i use the equation (-Vo/R)* (-t/RC), substituting t=0 for immediately after the switch closes and use (R2+R3) as R? So when the capacitor is charged the only current flowing is through R2. Now when the switch is opened the capacitor starts to discharge.
What is the current through the battery after switch 1 has been closed?
Both switches are initially open, and the capacitor is uncharged. What is the current through the battery after switch 1 has been closed a long time? 1) I b= 0 2) I b= E/(3R ) 2R I b () 3) I b= E/(2R) 4) I b= E/R ε+C R – + – S 2 S 1 • Long time ⇒current through capacitor is zero •I b=0 because the battery and capacitor are in series.
Is the current in an inductor zero just after closing the switch?
This is derived by finding the differential equation in terms of current by using KVL. Is this true that the current in the circuit consisting of an inductor, a capacitor and a resistor (all in series) is zero too at the time just after closing the switch?
When does the current rise after a switch?
The general solution is given by: . Now, at t = 0, let the current be zero. On switching on the current, then the current rises to a maximum value exponentially. Otherwise, it takes a finite time for the current to have a constant value in the circuit .