You Want to Use a Metal Bar as a Resistor

question 4

Multiple Choice

You want to use a metal bar as a resistor.Its dimensions are 2 by 4 by 10 units.To get the smallest resistance from this bar,you should attach leads to the two opposite sides that have the dimensions of

• A)2 by 4 units.
• B)2 by 10 units.
• C)4 by 10 units.
• D)any number of units because all connections give the same resistance.
• E)None of these is correct.