Question

Two lambs with the resistance of 10 ohms each are connected in a parallel circuit and are supplied with 50 v of power. What is the total resistance of the circuit?

1) 5 ohms
2) 10 ohms
3) 20 ohms
4) 50 ohms

Answer 1

The total resistance of two 10-ohm lamps connected in parallel in a circuit supplied with 50 V of power is 5 ohms.

Step-by-step explanation:

The question pertains to the concept of total resistance in a parallel circuit. When two resistors are in parallel, the total resistance can be found using the formula 1/R_total = 1/R1 + 1/R2. Since both resistors have a resistance of 10 ohms, the calculation will be 1/R_total = 1/10 + 1/10 = 2/10. Simplifying that gives us 1/R_total = 1/5, so the total resistance is 5 ohms. Therefore, for two lamps with a resistance of 10 ohms each connected in a parallel circuit, the total resistance is 5 ohms.