Exercise XIV — task. Science CBSE, Class 10.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Compare the power used in the $2\ Ω$ resistor in each of the following circuits:
(i) a $6\ V$ battery in series with $1\ Ω$ and $2\ Ω$ resistors, and
(ii) a $4\ V$ battery in parallel with $12\ Ω$ and $2\ Ω$ resistors.

(i) Potential difference

$=$

$6\ V$

The two resistors

$1\ Ω$ and

$2\ Ω$ are connected in series. Hence, the equivalent resistance is .

According to Ohm’s law, the current can be calculated using the formula

$I = \frac{i}{i}$

On substituting the known values, we get .

The formula to calculate power is given as

$P_{S} = i^{i} i$

On substituting the known values, the power consumed by

$2\ Ω$ resistor is .

(ii) Potential difference

$=$

$4\ V$

The power consumed by

$2\ Ω$ resistor is

$P_{P} = \frac{i^{i}}{i}$

On substituting the known values, the power consumed by

$2\ Ω$ resistor is . From both the circuits, it can be seen that

$2\ Ω$ resistors uses .

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14. Exercise XIV

Exercise condition: