GK
PHYSICS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Electric circuit
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Electric current
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Resistance
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Ohm’s Law
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Detailed explanation-1: -A circuit is simply a closed loop through which charges can continuously move.
Detailed explanation-2: -Electric current is a flow of charges. We know current flows from the positive terminal to the negative terminal of a cell. The direction of flow of current is opposite to the direction of flow of electrons. Hence, in a closed circuit, electrons flow from the negative terminal to the positive terminal of a cell.
Detailed explanation-3: -In the closed circuit, the electrons have a continuous path to travel and thus current flows continuously.
Detailed explanation-4: -A closed loop control system is a mechanical or electronic device that automatically regulates a system to maintain a desired state or set point without human interaction. It uses a feedback system or sensor.