Mell What is when no current can flow through the circuit?
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 condition for flow of current?
Answer: To produce an electric current, three things are needed: A supply of electric charges (electrons) which are free to flow, some form of push to move the charges through the circuit and a pathway to carry the charges. The pathway to carry the charges is usually a copper wire.
What is the difference between an open circuit and a short circuit?
The open circuit voltage is the voltage difference measured between two terminals when no current is drawn or supplied. The short circuit current is the current that flows when the terminals are forced to have zero voltage difference.
What is the difference between current and electron flow?
Conventional Current assumes that current flows out of the positive terminal, through the circuit and into the negative terminal of the source. Electron Flow is what actually happens and electrons flow out of the negative terminal, through the circuit and into the positive terminal of the source.
Which controls the flow of current in a circuit?
Switches are like gates that control the flow of electricity in a circuit. When a switch is open, it creates a gap in the circuit and current will not flow. When it is closed, it completes the circuit, and current flows through it.
What causes the current to not flow through a circuit?
If any part is missing or not connected properly, the circuit will not be complete, and electric current will not flow. The electrical energy we use is usually created by a generator, a machine that converts mechani-
When does no current flow through the galvanometer?
In the circuit in Figure, if no current flows through the galvanometer when the key k is closed, the bridge is balanced. The balancing condition for bridge is In the steady state, no current is passing through the capacitor.
When does a circuit reach a transient state?
After a long time, the current will be zero and the circuit will reach a new, albeit trivial, equilibrium or steady state condition (i=0, vc=0, vR=0). The transient characteristics of the circuit describes the behavior of the circuit during the transition from one steady state condition to another.
When is a bridge circuit said to be balanced?
Explanation: The bridge circuit is said to be balanced when no current flows through the null indicator which is generally a galvanometer. 8. Relationship at balance condition between the component values of the four arms of a bridge is known as _________