Question

Four resistors $100 \, \Omega , 200 \, \Omega, 300 \, \Omega$ and $400 \, \Omega$ are connected to form four sides of a square. The resistors can be connected in any order. What is the maximum possible equivalent resistance across the diagonal of the square ?

• A. $210 \,\Omega$
• B. $240\,\Omega$
• C. $300\, \Omega$
• D. $250 \,\Omega$

Answer 1

Answer: (D)

$250 \,\Omega$

Answer 2

For maximum equivalent resistance across the diagonal of the square, the given resistors connected as