NEET UG PHYSICS MCQ: CURRENT ELECTRICITY

1 Medium

1 of 1

Analyzing +4 | -1

40 \,{~W}, 220 \,{~V}

and

110 \,{~W}, 220\, {~V}

bulbs are connected in series with

440\, volt

supply, then

View answer and explanation

Correct option: B

40\, {~W}

bulb will fuse

Option B (40 W bulb will fuse) is correct because the 40W bulb has a higher resistance and will dissipate more power when connected in series, exceeding its power rating.

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In the absence of applied potential, the electric current flowing through a metallic wire is zero because A metallic block has no potential difference applied across it, then the mean velocity of free electrons at absolute temperature

T

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(E) The drift velocity increases with the increase in the temperature of conductor.
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\mathrm{quantity}\,\,\mathrm{/}\,\mathrm{quantities}

constant along the length of the conductor

\mathrm{is}\,\,\mathrm{/}\,\,\mathrm{are}