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Calculate the equivalent resistance when three resistances are connected in series of values 8 Ω, 3 Ω, 1 Ω.

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Calculate the equivalent resistance when three resistances are connected in series of values 8 Ω, 3 Ω, 1 Ω.

(a) 12 Ω

(b) 18 Ω

(c) 15 Ω

(d) 16 Ω

This question was posed to me in examination.

My query is from Electric Motors in division Braking of Electric Motors of Electric Drives

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Best answer
The correct choice is (a) 12 Ω

The best I can explain: When three resistances are connected in series their equivalent resistance is equal to the sum of the individual resistances. Req=R1+ R3+R2=12 Ω.

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