Acircuit contains two devices that are connected in parallel. if the resistance of one of these devices is 12 ohms and the resistance of the other device is 4 ohms, the total resistance of the two devices is a. 0.333 ohms. b. 16 ohms. c. 0.0625 ohms. d. 3 ohms.

Answer

Formula

Resistance for parallel circuit.

As given

A circuit contains two devices that are connected in parallel.

if the resistance of one of these devices is 12 ohms and the resistance of the other device is 4 ohms.

Put in the above

L.C.M of (12,4)= 12

Therefore the total resistance of the two devices is 3 ohms .

Option (b) is correct .

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