5) a) What is the resistance of ten 100-W light bulbs connected in parallel.b) i

Question

5) a) What is the resistance of ten 100-W light bulbs connected in parallel.b) in series? the resistance of a 100-W 120-V light bulb is 144 ohm ignoring the temperature dependence of resistance.

6) a)Calculate the currents used by and resistances of 25- and 60-W light bulbs designed to operate on 120-V electricity. b) If these two bulbs are connected in series to a 120-V source, what power is consumed by each assuming that their resistances are the same as found in a)?

7) Will a 120-V hospital circuit protected by a 15-A circuit breaker be able to operate a 200-W ECG monitor, a 1200-W microwave oven , and eight 40-W lights simultaneously?

Explanation / Answer

reistance in parallel=14.4 ohm resistance in series=1440 ohm

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