(Solved):   A triangular array of resistors is shown in the figure below. A \( 4 \mathrm{~V} \) batt ...

 

A triangular array of resistors is shown in the figure below. A \( 4 \mathrm{~V} \) battery is connected across points a and b. a) Which of the following shows the correct equivalent circuit diagram? Answer "A", "B", or "C" in this box without quotes. b) Calculate the total effective resistance between points \( a \) and b. Remember to quote at the correct s.f. \( R_{e q}= \) \( \mathrm{k} \Omega \) c) Calculate the current drawn by the \( 10 \mathrm{k} \Omega \) resistor. \[ I=\quad \mathrm{mA} \text {. } \]