The resistance 4R,16R,64R....`oo` are connected in series. Find their equivalent resistance.

Explanation

To find the equivalent resistance of the resistors connected in series (4R, 16R, 64R, ...), we can follow these steps:

### Step 1: Identify the series resistance formula
In a series circuit, the total or equivalent resistance (R_eq) is the sum of all individual resistances. The formula is:
\[ R_{eq} = R_1 + R_2 + R_3 + ... \]

### Step 2: Write down the resistances
The resistances given are in the form of a geometric series:
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