Question 248: Current Electricity

Question

Different combination of 3 resistors of equal resistance $$\mathrm{R}$$ are shown in the figures. The increasing order for power dissipation is:

Accepted Answer

$\mathrm{P}=\mathrm{I}^2 \mathrm{R}$
$$
\mathrm{R}_1=\frac{3 \mathrm{R}}{2}, \mathrm{R}_2=\frac{2 \mathrm{R}}{3}, \mathrm{R}_3=\frac{\mathrm{R}}{3}, \mathrm{R}_4=3 \mathrm{R}
$$
Since $\mathrm{i}$ is same, hence $\mathrm{P} \propto \mathrm{R}$ so options (B) is correct

Answer

$$\mathrm{P}_{\mathrm{B}}<\mathrm{P}_{\mathrm{C}}<\mathrm{P}_{\mathrm{D}}<\mathrm{P}_{\mathrm{A}}$$

Answer

$$\mathrm{P}_{\mathrm{C}}<\mathrm{P}_{\mathrm{B}}<\mathrm{P}_{\mathrm{A}}<\mathrm{P}_{\mathrm{D}}$$

Answer

$$\mathrm{P}_{\mathrm{C}}<\mathrm{P}_{\mathrm{D}}<\mathrm{P}_{\mathrm{A}}<\mathrm{P}_{\mathrm{B}}$$

Answer

$$\mathrm{P}_{\mathrm{A}}<\mathrm{P}_{\mathrm{B}}<\mathrm{P}_{\mathrm{C}}<\mathrm{P}_{\mathrm{D}}$$

Current Electricity

Different combination of 3 resistors of equal resistance $\mathrm{R}$ are shown in the figures. The increasing order for power dissipation is:

Choose the correct answer: