**a) **

Power:

$\overline{){\mathbf{P}}{\mathbf{=}}{\mathbf{V}}{\mathbf{i}}{\mathbf{=}}{{\mathbf{i}}}^{{\mathbf{2}}}{\mathbf{R}}{\mathbf{=}}\frac{{\mathbf{V}}^{\mathbf{2}}}{\mathbf{R}}}$

P = i^{2}R.

Current is equal, but R is different. The power dissipated in each resistor **cannot** be the **same**.

**b)**

Ohm's law:

When unequal resistors are connected in series across an ideal battery,

a) the same power is dissipated in each one.

b) the potential difference across each is the same.

c) the current flowing in each is the same.

d) the equivalent resistance of the circuit is less than that of the smallest resistor.

e) the equivalent resistance of the circuit is equal to the average of all the resistances.

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