What is the current immediately after the switch is closed?, This is due to the presence of inductance and capacitance in the circuit. This is why we say, unlike in the resistive circuit, in an LCR circuit, the current will be zero, just immediate after the switch is closed.
Furthermore, What is the current through the 20ω resistor immediately after the switch is closed?, The inductor acts as a path of infinite resistance (open circuit) immediately after the switch is closed. The 10Ω and 20Ω resistors are in series. The current through series resistors is the same. The current through the 20Ω resistor immediately after the circuit is closed is 1A.
Finally, What happens to the voltage when the switch is closed?, Before the switch is closed, there is no voltage or current across either the resistor or the inductor. When the switch is first closed, the current through the inductor is zero, because it cannot change instantaneously. … When this happens, the current is no longer changing, so the voltage across the inductor is zero.
Frequently Asked Question:
What is the voltage drop across the inductor immediately after the switch is closed?
So immediately after closing the switch, the voltage over the capacitor can not change and therefore the voltage presented to the further right of your circuit is 0.
What happens to voltage when switch is closed?
Before the switch is closed, there is no voltage or current across either the resistor or the inductor. When the switch is first closed, the current through the inductor is zero, because it cannot change instantaneously. … When this happens, the current is no longer changing, so the voltage across the inductor is zero.
What is the current immediately after the switch is closed?
This is due to the presence of inductance and capacitance in the circuit. This is why we say, unlike in the resistive circuit, in an LCR circuit, the current will be zero, just immediate after the switch is closed.
What is the voltage across the capacitor immediately after closing the switch?
a) Immediately after the switch is closed, the voltage drop across the capacitor is zero.
What is the voltage drop across an inductor?
However, the voltage drop across the inductor, VL will have a value equal to: Ve(-Rt/L). Then the voltage across the inductor, VL will have an initial value equal to the battery voltage at time t = 0 or when the switch is first closed and then decays exponentially to zero as represented in the above curves.
What happens to the current 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.
What is the current immediately after the switch is thrown?
Immediately after the switch is thrown closed, the current is V0/R.
What is the voltage drop across the inductor immediately after the switch is closed?
So immediately after closing the switch, the voltage over the capacitor can not change and therefore the voltage presented to the further right of your circuit is 0.
Why does current increase when switch is closed?
What happens to the reading on the ammeter when the switch is closed? When the switch is closed, resistors R1 and R2 are in parallel, so that the total circuit resistance is smaller than when the switch was open. As a result, the current increases.
Does current flow in a closed circuit?
An electric current can only flow when there is a closed path in which electrons can move.
How does the current in lightbulb a change if at all when the switch is closed and why?
If we open or close switches, does it change the total current in the circuit? Absolutely, because it changes the total resistance (the equivalent resistance) of the circuit.
What happens to current when a switch is closed?
When a switch is closed in a complete circuit the current from the power source will flow through the load. If there is a break in the circuit closing the switch will not let the current to transfer to the load. The break might be anywhere in the conducting wire or the filament of the bulb.
Does current flow when a switch is open?
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.
What happens to voltage when switch is closed?
Before the switch is closed, there is no voltage or current across either the resistor or the inductor. When the switch is first closed, the current through the inductor is zero, because it cannot change instantaneously. … When this happens, the current is no longer changing, so the voltage across the inductor is zero.
What is the current immediately after the switch is closed?
This is due to the presence of inductance and capacitance in the circuit. This is why we say, unlike in the resistive circuit, in an LCR circuit, the current will be zero, just immediate after the switch is closed.
What is the voltage across the capacitor immediately after closing the switch?
a) Immediately after the switch is closed, the voltage drop across the capacitor is zero.
What is the voltage drop across an inductor?
However, the voltage drop across the inductor, VL will have a value equal to: Ve(-Rt/L). Then the voltage across the inductor, VL will have an initial value equal to the battery voltage at time t = 0 or when the switch is first closed and then decays exponentially to zero as represented in the above curves.