In a circuit tester, LED bulb is used in place of a normal bulb because LED bulbs needs ______ electric current.

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Solution

The correct option is B
less

LED needs less electric current to glow compared to the normal bulb. LED does not need to heat the filament to produce light.

Hence, LED-based tester is better for testing conductivity of liquids (like salt solutions) with low electrical conductivity.

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Similar questions

Q. In the tester, LED bulb is used in place of a normal bulb because LED bulb needs ____ electric current in comparison.

A tester is made to test the conductivity of poor conductor liquids. In the tester, LED bulb is used in the place of normal bulb because LED bulb needs ____ electric current in comparison.

Q. LED is better than bulb to use in a tester as :

Q. Which of these is better for use in a tester for testing conductivity of liquids−electric bulb or LED light?

State whether true or false :

A bulb is used in place of LED to detect weak currents.

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In a circuit tester, LED bulb is used in place of a normal bulb because LED bulbs needs ______ electric current.

The correct option is B less LED needs less electric current to glow compared to the normal bulb. LED does not need to heat the filament to produce light. Hence, LED-based tester is better for testing conductivity of liquids (like salt solutions) with low electrical conductivity.

The correct option is B
less

LED needs less electric current to glow compared to the normal bulb. LED does not need to heat the filament to produce light.

Hence, LED-based tester is better for testing conductivity of liquids (like salt solutions) with low electrical conductivity.