Final answer:
In an infinitely long chain of resistors, the resistance between terminals a and b is equal to R * ∞, where R is the resistance of each individual resistor.
Step-by-step explanation:
The question asks for the resistance between terminals a and b in an infinitely long chain of resistors. To solve this, we can use the concept of equivalent resistance. In an infinitely long chain, all the resistors are connected in series. Therefore, the resistance between terminals a and b is equal to the sum of all the resistors in the chain. If each resistor has a resistance of R, then the total resistance between terminals a and b is R + R + R + ... (infinite times). This can be written as R * ∞.