EARTH SCIENCE
MAGNETISM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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true
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false
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Either A or B
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None of the above
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Detailed explanation-1: -The given statement is True. An electric current’s continuous and closed path is known as an electric circuit. This closed path or loop consists of a network of electrical components through which the electrons can pass.
Detailed explanation-2: -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.
Detailed explanation-3: -The terms “open” and “closed” are used to describe both switches and whole circuits. An open switch is one that has no continuity, meaning that no current can flow through it. A closed switch allows the current to flow in a direct (low resistance) path.
Detailed explanation-4: -No electricity is flowing in that particular circuit and is expected to flow only in a closed circuit. Since no current flow is observed in the circuit when the switch is turned off the circuit is called an open circuit. The correct option is B-The circuit is now an open circuit.
Detailed explanation-5: -When a switch is closed, the current built up in an electric circuit is given by E=Ri+Ldtdi.