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Colour Coding of Resistors

If current fl...

Question

If current flowing through the LED in the circuit is need to be controlled, what from the following can be connected to the circuit?

A

Rheostat

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B

Resistor

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C

Both a and b

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D

Bulb

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Solution

The correct option is C Both a and b
Resistor is used to reduce the current flow and Rheostat is also used to reduce the current by varying the resistance. Therefore if current flowing through a LED in the circuit is need to be controlled, the rheostat or resistor can be connected to the circuit.

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