GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the purpose of a resistor?
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control current flow
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allow current flow
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prevent current flow
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allow heat to build up
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Explanation:
Detailed explanation-1: -Resistor is used to resistance the flow of current. When resistor is placed in a circuit, the current flow decreases when current passes through the resistor. The part of current energy dissipate in the form of heat in resistor, thus decrease the total current.
Detailed explanation-2: -The main purpose of resistor is to reduce the current flow and to lower the voltage in any particular portion of the circuit.
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