Question

Calculate the equivalent resistance when two resistances are connected in series of values 12 Ω, 10 Ω.

(a) 32 Ω

(b) 22 Ω

(c) 47 Ω

(d) 17 Ω

I have been asked this question by my school principal while I was bunking the class.

I'd like to ask this question from Electric Motors in section Braking of Electric Motors of Electric Drives

Answer 1

Right choice is (b) 22 Ω

Explanation: When two resistances are connected in series their equivalent resistance is equal to the sum of the individual resistances. Req=R1+R2=22 Ω.