Answered: 78. A factory is served by a 220 V…

78. A factory is served by a 220 V supply line. In a circuit protected by a fuse marked 10 A, the maximum number of 100 W lamps in parallel that can be turned on is (a) 11 (c) 33 (b) 22 (d) 66

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter18: Direct-Current Circuits

Section: Chapter Questions

Problem 51AP: When two unknown resistors are connected in series with a battery, the battery delivers 225 W and...

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Concept explainers

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

Question

Help please

78. A factory is served by a 220 V supply line. In a circuit
protected by a fuse marked 10 A, the maximum number of
100 W lamps in parallel that can be turned on is
(a) 11
(c) 33
(b) 22
(d) 66

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