Question

Tow resistor 10 ohm and 40 ohm are connected first in series, and then in parallel which type of combination will give less effective resistance? Justify

Answer 1

Answer:

Req. is less effective in parallel combination of resistors

Explanation:

for series                                      for series                    

Req. = R1 + R2                         ║    1/ Req. = 1 /R1 + 1/ R2

Req. = 10 + 40                         ║     1/ Req. = 1/10 + 1/40

Req. = 50 0hm                        ║    1/ Req. = 5/40

                                               ║     Req. = 8 ohm